Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Tuesday, August 21, 2012

Mississippi River suffering from drought - and Fracking?


- Common Dreams

Climate change induced drought wreaks havoc on water highway

Continued drought conditions have brought the Mississippi River to its lowest level since 1988 and have lead the U.S. Coast Guard to close an 11-mile stretch of the river, backing up traffic on the heavily used waterway. In New Orleans, the levels mean salt water is creeping into the drinking supply.
Members of the Mississippi River Commission, which advises the U.S. Army Corps of Engineers on managing the river, met one of it stops in Caruthersville, Mo. on Monday during its annual low water inspection tour.  "The unofficial 28 day forecast is for no rain and if that happens, we will be approaching the water levels, the historic water levels of 1988 which means problems up and down the river system," said R.D. James with the Mississippi River Commission. "If we go below the water stages of 1988, I don't think there'll be enough dredges available even if we had the money to maintain the harbors and the channel from Cairo to the Gulf. It'd be tragic."
To keep the water at levels usable for cargo, the Army Corps of Engineers has set out a dozen dredging vessels to suck up sediment from the bottom of the river and spit it out to banks.
In The Lede blog in the New York Times discusssing the Mississippi River Commission's tour, John Schwartz subtley points out how factors beyond drought may be affecting river levels:  "Brig. Gen. Margaret W. Burcham, a member of the commission, said that on this year’s trip, gas drillers in North Dakota have expressed their need to use enormous quantities of water from the upper Mississippi for fracking [emphasis ours], but farmers farther downstream want that water for irrigation; while others want the water in the river so they can get their good to market on barges."
The low water levels in the river are bringing a drinking water crisis to the New Orleans area.  The low level coupled with the higher density of salt water is allowing water from the Gulf to travel upward affecting water supplies. To stop this, a $5.8 million underwater sill is being created by making a dam from sediment from further up the river.

Thursday, July 19, 2012

The Heat Goes On


 The US drought with record high temperatures continues. Other places like the UK are having record rainfall. Japan also had severe flooding from the rain.

Record High Temps in Red (lows in blue) 7-17--7-19

101 degrees on one side of the rain, 74 degrees on the other


This is corn in Brownsburg, IN.
The rain events have been spottier than usual. A small storm popping up, dropping a little rain, dissipating.

We hear thunder and get a few drops.

The map with the weather stations is from a couple of days ago - a storm got some areas and temporarily a relief from the 100 degree heat.

Owen County, Indiana, where I live, is in the official disaster area.

Fortunately we continue to have water in our well. We aren't wasting any (much). I water a few pots and recently planted blueberries a little. We hope we can make it until the drought is over (I hope it will be over).

Much is dry. The grass doesn't grow - we don't worry about it. Most of the established trees seem fine. Some have dried and dropped some leaves already.

Farmers are having a tough time.

The dried up lake with boats is Morse Reservoir - just north of Indianapolis. It's not completely dried up - just the shallower parts. Morse, Geist and Eagle Creek are where Indy gets their water.


Morse Reservoir showing drought effects



Wednesday, October 19, 2011

"Mexico's newest export to US: Water"

From msnbc.com:

SAN DIEGO — Mexico ships televisions, cars, sugar and medical equipment to the United States. Soon, it may be sending water north.

Western states are looking south of the border for water to fill drinking glasses, flush toilets and sprinkle lawns, as four major U.S. water districts help plan one of two huge desalination plant proposals in Playas de Rosarito, about 15 miles south of San Diego. Combined, they would produce 150 million gallons a day, enough to supply more than 300,000 homes on both sides of the border.

The plants are one strategy by both countries to wean themselves from the drought-prone Colorado River, which flows 1,450 miles from the Rocky Mountains to the Sea of Cortez. Decades of friction over the Colorado, in fact, are said to be a hurdle to current desalination negotiations.

The proposed plants have also sparked concerns that American water interests looking to Mexico are simply trying to dodge U.S. environmental reviews and legal challenges.

Desalination plants can blight coastal landscapes, sucking in and killing fish eggs and larvae. They require massive amounts of electricity and dump millions of gallons of brine back into the ocean that can, if not properly disposed, also be harmful to fish.

But desalination has helped quench demand in Australia, Saudi Arabia and other countries lacking fresh water....

Water agencies that supply much of Southern California, Phoenix, Las Vegas and Tijuana, Mexico, are pursuing the plant that would produce 50 million gallons a day in Rosarito near an existing electricity plant. They commissioned a study last year that found no fatal flaws and ordered another one that will include a cost estimate, with an eye toward starting operations in three to five years.

Potential disagreements between the two countries include how the new water stores will be used.

The U.S. agencies want to consider helping pay for the plant and letting Mexico keep the water for booming areas of Tijuana and Rosarito. In exchange, Mexico would surrender some of its allotment from the Colorado River, sparing the cost of laying pipes from the plant to California.

Mexico would never give up water from the Colorado, which feeds seven western U.S. states and northwest Mexico, said Jose Gutierrez, assistant director for binational affairs at Mexico's National Water Commission. Mexico's rights are enshrined in a 1944 treaty.

"The treaty carries great significance in our country. We have to protect it fiercely," Gutierrez said.

The San Diego County Water Authority is also considering a plant at Southern California's Camp Pendleton that would produce up to 150 million gallons a day. Poseidon wants to build one in Huntington Beach, near Los Angeles, that would churn out 50 million gallons a day. Those ideas face significant challenges....

The San Diego agency wants to get 10 percent of the region's water from desalination by 2020 as a way to lessen its dependence on the Colorado River, which is connected by aqueduct about 200 miles away. Tijuana also wants to rely less on the river, a priority that gained urgency after a 2010 earthquake knocked out its aqueduct for about three weeks.

Sunday, July 03, 2011

During Texas drought - lots of water going to Fracking

From Grist.org:

Texas is experiencing the driest eight-month period in its recorded history. But in 2010, natural gas companies used 13.5 billion gallons of fresh water for hydraulic fracturing, and that could more than double by 2020. Where's all this water coming from? Oh, it was just lying around, in these aquifers! You guys weren't using it to drink or irrigate or anything, right? Guys?

Crockett County, Tx., near San Angelo (which you probably also haven't heard of, but it's not near much else), has gotten less than two inches of rain since October. But water for fracking could soon make up 25 percent of the county's water usage, according to its groundwater conservation manager. Fracking takes between 50,000 and 4 million gallons for a single well, on average, and could take as many as 13 million gallons. And most of that water is gone for good -- 75 percent of it can't be recovered.

Fracking works with brackish water, the stuff that's not really useful for drinking or irrigation. The equipment is just so precious and delicate, though -- we wouldn't want it getting gummed up! "[G]iven the specific sort of engineering and pressure they're using, it's better to have fewer impurities in the water, so fresh water works better," says the president of the pro-oil Permian Basin Petroleum Association. Thank goodness the same can't be said of people and animals and crops!

Sunday, August 22, 2010

Water Communion


Water from near and far - poured into a bowl. From oceans, lakes, rivers, fountains and memorials, water faucets and rain. From adults and children, young and old. With memories - good, bad and in between. That's the Unitarian Universalist water ritual.

Water flowing clear, oxygen and hydrogen - molecules mingling like people in a crowd. It's about connections, community, experiences and life.

In a bowl of water, the idea that some of the molecules are better, or have been "chosen" is absurd. While we are all a bit more complicated than that with our DNA with it's genes and proteins, the same concept applies. We are app. 60% water, 16% protein, 15% fat.

Thinking of all of humanity, and life on earth, and the water that circulates through all of our systems, and the air we breathe as being one system is a positive thing. Is life a shared experience or a competition? Are you more like a bonobo (flexible about sharing) or a chimpanzee ("where status is paramount and aggression can be severe")? We are more closely related to chimpanzees. Testosterone is king in chimp land. Among bonobos, the female is dominant and cooperation and food sharing is practiced. Bonobos developed communication and stress reduction techniques. Chimps developed tools and weapons, murder and war.

Historically, people have presumed that money could serve some amount of protection. Wealth passed down through generations could help one's surviving genes. Genes apparently have their own selfish mechanisms for survival. Genes on the female side are more interested in ensuring communication, while the genes on the male side are more interested in sex and emotion.

Ridley's 'Genome' book suggests we get our striatum, cortex, and hippocampus (sensory processing, thinking, consciousness) cells from our mothers and that most of our cells in our hypothalamus & amygdala (emotions, stress, hormones) come from our fathers. ‎"In the opinion of one scientist, Robert Trivers, this difference reflects the fact that the cortex has the job of co-operating with maternal relatives while the hypothalamus is an egotistical organ."

The premise of the book "The Chalice and the Blade" is that women and the women's perspective needs to be more influential than it has been the past few centuries - for the good of humanity and the planet. Women have evolved to be more interdependent-minded in order to raise children. An attitude of cooperation is required.

We all need the planet - and a poisoned planet will be a difficult place for all to live, not just those with less means and fewer stored assets. Huffingpost has an article of "9 Surprising Diseases You Can Catch In The Nation's Oceans." Those include: Hepatitis (from red (hospital) waste & ill disposed bodies), Enteric Bacteria (from storm water and sewage), Legionnaire's disease, a form of pneumonia, Gastrointestinal illnesses from cryptosporidium, giardia, shigella, e.coli and norovirus, MRSA (Methicillin-resistant Staphylococcus aureus), and oil spill related illness including skin infections and respiratory problems, headaches, etc., Some (MRSA) are spread more in warm waters such as the Mediterranean, California, Florida. Others diseases are more prevalent near large cities with the resultant pollution such as Miami, San Diego, San Francisco and Los Angeles. Lakes and rivers have their pollution problems as well.

While one might think distance from civilization would make for cleaner water, that cannot be assumed, either. People living on the far outskirts of civilization have had problems with mercury and other pollution related substances getting into the water and the food chain.

Hoarding money will not save us - but more regulations would help regarding pollution and pesticides, of food, air and water. One blogger put it like this: "Anti-government sentiment is grounded in the idea that the government will take stuff from you and give it to someone outside your tribe...." Not only is our country our tribe, the world is our tribe. Bonobos are the better model than chimpanzees (and unregulated capitalism).

Encouraging selfishness is not the way to go in this. The more selfish people are, the worse we all are. The more large corporations are allowed to put profit before our health and our lives, the worse we all are. We don't want to ourselves to be polluted (it's not good for our health). We need to be smart about our shared home, food, air and water. We are all connected. The world is smaller than it appears.

Friday, July 23, 2010

"...U.S. Counties Face Water Shortages Due to Climate Change"



From NRDC:

Greatest Risks Seen in 14 States: AZ, AR, CA, CO, FL, ID, KS, MS, MT, NE, NV, NM, OK and TX;

WASHINGTON (July 20, 2010) -- More than 1,100 U.S. counties -- a full one-third of all counties in the lower 48 states -- now face higher risks of water shortages by mid-century as the result of global warming, and more than 400 of these counties will be at extremely high risk for water shortages, based on estimates from a new report by Tetra Tech for the Natural Resources Defense Council (NRDC).

The report uses publicly available water use data across the United States and climate projections from a set of models used in recent Intergovernmental Panel on Climate Change (IPCC) work to evaluate withdrawals related to renewable water supply. The report finds that 14 states face an extreme or high risk to water sustainability, or are likely to see limitations on water availability as demand exceeds supply by 2050. These areas include parts of Arizona, Arkansas, California, Colorado, Florida, Idaho, Kansas, Mississippi, Montana, Nebraska, Nevada, New Mexico, Oklahoma, and Texas. In particular, in the Great Plains and Southwest United States, water sustainability is at extreme risk.

The more than 400 counties identified as being at greatest risk in the report reflects a 14-times increase from previous estimates. For a look at county- and state-specific maps detailing the report findings (including a Google Earth map), go to http://www.nrdc.org/globalWarming/watersustainability/ and http://rd.tetratech.com/climatechange/projects/nrdc_climate.asp.

While detailed modeling of climate change impacts on crop production was beyond the scope of the Tetra Tech analysis, the potential scale of disruption is reflected based on the value of the crops produced in the 1,100 at-risk counties. In 2007, the value of the crops produced in the at-risk counties identified in the report exceeded $105 billion. A separate study compared the Tetra Tech data with county-level crop production data from the U.S. Department of Agriculture; state-specific fact sheets outlining the potential agricultural impacts may be found at http://agcarbonmarkets.com/Science.htm....

Friday, July 09, 2010

"Hundreds Drown During Russian Heatwave"

From news.sky.com:

As temperatures soared to record-breaking highs, hitting 37C in central regions, sweltering Russians have been throwing themselves into rivers and lakes to cope with the heat.

But many have ignored warning signs about hidden dangers at certain spots or drank alcohol before swimming, putting themselves in danger.

Russia's emergency ministry confirmed that almost 300 people have drowned during the heatwave, with at least 63 people dying in one day alone.

A ministry spokesman said: "Last week, 285 people died in Russia's waterways. The main reason for people drowning is swimming in places that are not equipped and the use of alcohol."

Russian weather forecasters said the country had not experienced such a prolonged heatwave since 1981.

Moscow's City Hall had to send out trucks to water the streets after reports that in some areas people's shoes were getting stuck in melting tarmac.

Drowning is a major problem in Russia, with more than 3,000 people dying while swimming last year alone.

From On Scene-> "Drowning Doesn’t Look Like Drowning"

The new captain jumped from the cockpit, fully dressed, and sprinted through the water. A former lifeguard, he kept his eyes on his victim as he headed straight for the owners who were swimming between their anchored sportfisher and the beach....”Move!” he barked as he sprinted between the stunned owners. Directly behind them, not ten feet away, their nine-year-old daughter was drowning. Safely above the surface in the arms of the captain, she burst into tears, “Daddy!”

...Drowning is not the violent, splashing, call for help that most people expect. The captain was trained to recognize drowning by experts and years of experience. The father, on the other hand, had learned what drowning looks like by watching television. If you spend time on or near the water (hint: that’s all of us) then you should make sure that you and your crew knows what to look for whenever people enter the water. Until she cried a tearful, “Daddy,” she hadn’t made a sound.

In ten percent of those drownings, the adult will actually watch them do it, having no idea it is happening (source: CDC). Drowning does not look like drowning – Dr. Pia, in an article in the Coast Guard’s On Scene Magazine, described the instinctive drowning response like this:

1. Except in rare circumstances, drowning people are physiologically unable to call out for help. The respiratory system was designed for breathing. Speech is the secondary or overlaid function. Breathing must be fulfilled, before speech occurs.

2.Drowning people’s mouths alternately sink below and reappear above the surface of the water. The mouths of drowning people are not above the surface of the water long enough for them to exhale, inhale, and call out for help. When the drowning people’s mouths are above the surface, they exhale and inhale quickly as their mouths start to sink below the surface of the water.

3. Drowning people cannot wave for help. Nature instinctively forces them to extend their arms laterally and press down on the water’s surface. Pressing down on the surface of the water, permits drowning people to leverage their bodies so they can lift their mouths out of the water to breathe.

4. Throughout the Instinctive Drowning Response, drowning people cannot voluntarily control their arm movements. Physiologically, drowning people who are struggling on the surface of the water cannot stop drowning and perform voluntary movements such as waving for help, moving toward a rescuer, or reaching out for a piece of rescue equipment.

5. From beginning to end of the Instinctive Drowning Response people’s bodies remain upright in the water, with no evidence of a supporting kick. Unless rescued by a trained lifeguard, these drowning people can only struggle on the surface of the water from 20 to 60 seconds before submersion occurs.

Saturday, April 17, 2010

Weather/Water Problems in Rio

Tragedy Strikes in Rio as Rain Leaves Over 100 (250) Dead (4-7-2010)

Between 8pm Monday night and 8am yesterday morning, almost twice as much rain fell on Rio de Janeiro than was expected for the entire month of April. Early reports have yet to assess the total number of casualties brought about by this highly unusual weather, but currently the death toll stands at over 100, with many more injured. The rains have collapsed buildings, triggered mudslides, and flooded thoroughfares. Thousands are left homeless. Officials have scrambled to maintain order, but as the rain continues to fall, some are beginning to wonder if climate change is to blame.

Rio's Poor are the Hardest Hit
The governor of Rio, Sergio Cabral, says that the biggest losses of life were due to mudslides in the city's poor, hillside communities, called favelas. In these regions, building regulations are virtually nonexistent and addressing safety concerns is difficult. Cabral criticized past administrations "who, by demagogy allowed in the past, high-risk areas to be occupied."

According to authorities, many other hillsides in Rio face a similar threat of landslides...

Weather extremes in Brazil have become a reality in recent years, as the country has faced record-breaking rains in some regions and long, devastating droughts in others. Often, when such unusual weather struck in years past, El Niño was assigned the blame. But this most recent storm is occurring after this year's El Niño had passed with average intensity.

After experiencing the latest round of extreme weather, some in Brazil wonder if this may be symptomatic of climate change. Ambiente Brasil, in posing the question "Who is to blame for the tragedy today in Rio?", sites climate expert Alexandre Mansur of Revista Época:
Now, it is good to prepare as extreme events may become more frequent in the coming years. Significant effects of climate change (when weather patterns become unrecognizable) will only begin from 2020. But already in this decade we will have, according to researchers, extraordinary events will become commonplace. The records that held every 20 years and marked a generation, begin to repeat themselves more regularly. It's a good reason to stop the construction in inappropriate places.


Rio de Janeiro Hit by Massive Storm Surge (4-10-2010)



One week after Rio De Janeiro suffered from torrential rains and deadly mudslides, the Brazilian city was dealt extreme waves and a massive storm surge.

A storm surge is an unusual rise in sea level on the coast due to a low pressure weather system and accompanying high winds.
An extra-tropical cyclone, or a storm that forms outside the tropics, formed along the coast of Rio and caused the storm surge. The features of this storm are similar to the Nor'easter that occurs along the East Coast of the U.S.

"Extra-tropical cyclones are common in the South Atlantic," said Alexandre Aguair of METSUL Meteorological Center in Brazil. "But they usually form along the coast of Argentina and in the Plata region."

Sometimes, storm surges affect the southern coast of Brazil but if the cyclone is very deep, the surge may reach the Southeast region.

"As this system developed much more to the North than usual, the surge didn't have an impact in the South, but it was a direct hit for Sao Paulo and mainly Rio," Aguair said.

Tuesday, March 02, 2010

"Rulings Restrict Clean Water Act, Foiling E.P.A."

From the New York Times:

Thousands of the nation’s largest water polluters are outside the Clean Water Act’s reach because the Supreme Court has left uncertain which waterways are protected by that law, according to interviews with regulators.

As a result, some businesses are declaring that the law no longer applies to them. And pollution rates are rising.

Companies that have spilled oil, carcinogens and dangerous bacteria into lakes, rivers and other waters are not being prosecuted, according to Environmental Protection Agency regulators working on those cases, who estimate that more than 1,500 major pollution investigations have been discontinued or shelved in the last four years.

The Clean Water Act was intended to end dangerous water pollution by regulating every major polluter. But today, regulators may be unable to prosecute as many as half of the nation’s largest known polluters because officials lack jurisdiction or because proving jurisdiction would be overwhelmingly difficult or time consuming, according to midlevel officials.

“We are, in essence, shutting down our Clean Water programs in some states,” said Douglas F. Mundrick, an E.P.A. lawyer in Atlanta. “This is a huge step backward. When companies figure out the cops can’t operate, they start remembering how much cheaper it is to just dump stuff in a nearby creek.”

“This is a huge deal,” James M. Tierney, the New York State assistant commissioner for water resources, said of the new constraints. “There are whole watersheds that feed into New York’s drinking water supply that are, as of now, unprotected.”

The court rulings causing these problems focused on language in the Clean Water Act that limited it to “the discharge of pollutants into the navigable waters” of the United States. For decades, “navigable waters” was broadly interpreted by regulators to include many large wetlands and streams that connected to major rivers.

But the two decisions suggested that waterways that are entirely within one state, creeks that sometimes go dry, and lakes unconnected to larger water systems may not be “navigable waters” and are therefore not covered by the act — even though pollution from such waterways can make its way into sources of drinking water.

Saturday, December 12, 2009

Cities with best and worst tap water

By Lori Bongiorno on Yahoo!

It's now easier than ever for consumers to find out what's in their tap water. The Environmental Working Group (EWG) today released the results of a three-year investigation of municipal water supplies across the U.S.

The research and advocacy group looked at water quality tests performed by water utilities since 2004 and created an extensive database that contains info on the contaminants found in 48,000 communities in 45 states.

EWG also rated 100 big city (population over 250,000) water utilities. Below are the top and bottom results.

Cities with the best water:

Arlington, TX
Providence, RI
Fort Worth, TX
Charleston, SC
Boston, MA
Honolulu, HI
Austin, TX
Fairfax County, VA
St. Louis, MO
Minneapolis, MN


Cities with the worst water:

Pensacola, FL
Riverside, CA
Las Vegas, NV
Riverside County, CA
Reno, NV
Houston, TX
Omaha, NE
North Las Vegas, NV
San Diego, CA
Jacksonville, FL


Your city not on the list? Here is the full 100-city listing, or you can search for your town by ZIP code.

The results of the investigation raise some concerns about municipal water supplies in the U.S. EWG says 316 different contaminants were found in the nation's tap water. The group also points out that more than half of those contaminants aren't regulated by the Environmental Protection Agency.

Establishing more effective source water protection programs and developing enforceable government standards for contaminants would go a long way toward improving the nation's water supply, according to the EWG....

Sunday, December 06, 2009

"Will Big Business Save the Earth?"

Large corporations have the capacity to do great harm and the power to help in large ways. One thing about coca-cola is that it is totally useless and the drink is harmful for many people due the quantity they drink. The advertising that encourages consumption is a large part of the problem - healthwise and planetwise.

Walmart - as the purveyor of cheap junk is also a problem - and there are many other problems associated with the company - such as labor practices. But it is interesting to hear Diamond's take on the subject of business and the environment - and see it in the New York Times.


By Jared Diamond / the New York Times:

THERE is a widespread view, particularly among environmentalists and liberals, that big businesses are environmentally destructive, greedy, evil and driven by short-term profits. I know — because I used to share that view.

But today I have more nuanced feelings. Over the years I’ve joined the boards of two environmental groups, the World Wildlife Fund and Conservation International, serving alongside many business executives... I’ve discovered that while some businesses are indeed as destructive as many suspect, others are among the world’s strongest positive forces for environmental sustainability.

The embrace of environmental concerns by chief executives has accelerated recently for several reasons. Lower consumption of environmental resources saves money in the short run. Maintaining sustainable resource levels and not polluting saves money in the long run. And a clean image — one attained by, say, avoiding oil spills and other environmental disasters — reduces criticism from employees, consumers and government.

What’s my evidence for this? Here are a few examples involving three corporations — Wal-Mart, Coca-Cola and Chevron — that many critics of business love to hate, in my opinion, unjustly.

Let’s start with Wal-Mart. Obviously, a business can save money by finding ways to spend less while maintaining sales. This is what Wal-Mart did with fuel costs, which the company reduced by $26 million per year simply by changing the way it managed its enormous truck fleet. Instead of running a truck’s engine all night to heat or cool the cab during mandatory 10-hour rest stops, the company installed small auxiliary power units to do the job. In addition to lowering fuel costs, the move eliminated the carbon dioxide emissions equivalent to taking 18,300 passenger vehicles off the road.

Wal-Mart is also working to double the fuel efficiency of its truck fleet by 2015, thereby saving more than $200 million a year at the pump. Among the efficient prototypes now being tested are trucks that burn biofuels generated from waste grease at Wal-Mart’s delis. Similarly, as the country’s biggest private user of electricity, Wal-Mart is saving money by decreasing store energy use....

Coca-Cola’s problems are different from Wal-Mart’s in that they are largely long-term. The key ingredient in Coke products is water. The company produces its beverages in about 200 countries through local franchises, all of which require a reliable local supply of clean fresh water.

But water supplies are under severe pressure around the world, with most already allocated for human use. The little remaining unallocated fresh water is in remote areas unsuitable for beverage factories, like Arctic Russia and northwestern Australia.

Coca-Cola can’t meet its water needs just by desalinizing seawater, because that requires energy, which is also increasingly expensive. Global climate change is making water scarcer, especially in the densely populated temperate-zone countries, like the United States, that are Coca-Cola’s main customers. Most competing water use around the world is for agriculture, which presents sustainability problems of its own.

Hence Coca-Cola’s survival compels it to be deeply concerned with problems of water scarcity, energy, climate change and agriculture....

The third company is Chevron. Not even in any national park have I seen such rigorous environmental protection as I encountered in five visits to new Chevron-managed oil fields in Papua New Guinea. (Chevron has since sold its stake in these properties to a New Guinea-based oil company.) When I asked how a publicly traded company could justify to its shareholders its expenditures on the environment, Chevron employees and executives gave me at least five reasons.

First, oil spills can be horribly expensive: it is far cheaper to prevent them than to clean them up. Second, clean practices reduce the risk that New Guinean landowners become angry, sue for damages and close the fields. (The company has been sued for problems in Ecuador that Chevron inherited when it merged with Texaco in 2001.) Next, environmental standards are becoming stricter around the world, so building clean facilities now minimizes having to do expensive retrofitting later.

Also, clean operations in one country give a company an advantage in bidding on leases in other countries. Finally, environmental practices of which employees are proud improve morale, help with recruitment and increase the length of time employees are likely to remain at the company.

In view of all those advantages that businesses gain from environmentally sustainable policies, why do such policies face resistance from some businesses and many politicians? The objections often take the form of one-liners.

• We have to balance the environment against the economy. The assumption underlying this statement is that measures promoting environmental sustainability inevitably yield a net economic cost rather than a profit. This line of thinking turns the truth upside down. Economic reasons furnish the strongest motives for sustainability, because in the long run (and often in the short run as well) it is much more expensive and difficult to try to fix problems, environmental or otherwise, than to avoid them at the outset.

• Technology will solve our problems. Yes, technology can contribute to solving problems. But major technological advances require years to develop and put in place, and regularly turn out to have unanticipated side effects — consider the destruction of the atmosphere’s ozone layer by the nontoxic, nonflammable chlorofluorocarbons initially hailed for replacing poisonous refrigerant gases.

• World population growth is leveling off and won’t be the problem that we used to fear. It’s true that the rate of world population growth has been decreasing. However, the real problem isn’t people themselves, but the resources that people consume and the waste that they produce. Per-person average consumption rates and waste production rates, now 32 times higher in rich countries than in poor ones, are rising steeply around the world, as developing countries emulate industrialized nations’ lifestyles.

• It’s futile to preach to us Americans about lowering our standard of living: we will never sacrifice just so other people can raise their standard of living. This conflates consumption rates with standards of living: they are only loosely correlated, because so much of our consumption is wasteful and doesn’t contribute to our quality of life. Once basic needs are met, increasing consumption often doesn’t increase happiness.

Replacing a car that gets 15 miles per gallon with a more efficient model wouldn’t lower one’s standard of living, but would help improve all of our lives by reducing the political and military consequences of our dependence on imported oil. Western Europeans have lower per-capita consumption rates than Americans, but enjoy a higher standard of living as measured by access to medical care, financial security after retirement, infant mortality, life expectancy, literacy and public transport.

NOT surprisingly, the problem of climate change has attracted its own particular crop of objections.

• Even experts disagree about the reality of climate change. That was true 30 years ago, and some experts still disagreed a decade ago. Today, virtually every climatologist agrees that average global temperatures, warming rates and atmospheric carbon dioxide levels are higher than at any time in the earth’s recent past, and that the main cause is greenhouse gas emissions by humans. Instead, the questions still being debated concern whether average global temperatures will increase by 13 degrees or “only” by 4 degrees Fahrenheit by 2050, and whether humans account for 90 percent or “only” 85 percent of the global warming trend.

• The magnitude and cause of global climate change are uncertain. We shouldn’t adopt expensive countermeasures until we have certainty. In other spheres of life — picking a spouse, educating our children, buying life insurance and stocks, avoiding cancer and so on — we admit that certainty is unattainable, and that we must decide as best we can on the basis of available evidence. Why should the impossible quest for certainty paralyze us solely about acting on climate change? As Mr. Holdren, the White House adviser, expressed it, not acting on climate change would be like being “in a car with bad brakes driving toward a cliff in the fog.”

• Global warming will be good for us, by letting us grow crops in places formerly too cold for agriculture. The term “global warming” is a misnomer; we should instead talk about global climate change, which isn’t uniform. The global average temperature is indeed rising, but many areas are becoming drier, and frequencies of droughts, floods and other extreme weather events are increasing. Some areas will be winners, while others will be losers. Most of us will be losers, because the temperate zones where most people live are becoming drier.

•It’s useless for the United States to act on climate change, when we don’t know what China will do. Actually, China will arrive at this week’s Copenhagen climate change negotiations with a whole package of measures to reduce its “carbon intensity.”

...My friends in the business world keep telling me that Washington can help on two fronts: by investing in green research, offering tax incentives and passing cap-and-trade legislation; and by setting and enforcing tough standards to ensure that companies with cheap, dirty standards don’t have a competitive advantage over those businesses protecting the environment. As for the rest of us, we should get over the misimpression that American business cares only about immediate profits, and we should reward companies that work to keep the planet healthy.

Thursday, December 03, 2009

"World’s Largest Working Hydro-Electric Wave Energy Device Launched"

From Science Daily:

Queen's University Belfast has helped the global wave energy industry take a major stride forward with the launch of the world's largest working hydro-electric wave energy device by Aquamarine Power Ltd.

Known as Oyster, the device has been officially launched by Scotland's First Minister Alex Salmond MP, MSP at the European Marine Energy Centre (EMEC) in Orkney.

It is currently the world's only hydro-electric wave energy device producing power and is now producing power by pumping high pressure water to its onshore hydro-electric turbine. This will be fed into the National Grid to power homes in Orkney and beyond. A farm of 20 Oysters would provide enough energy to power 9,000 three bedroom family homes.

Oyster was first conceived out of work funded by an Engineering and Physical Sciences Research grant to Queen's between 2002 and 2004, to develop surging power-wave devices.

Professor Trevor Whittaker from Queen's School of Planning, Architecture and Civil Engineering was the principal investigator and was supported by Dr Matt Folley. Aquamarine Power Ltd was formed by a Scottish entrepreneur specifically to develop the technology. Today there is a joint agreement which results in Queen's undertaking all the hydrodynamic testing for Aquamarine.

Professor Whittaker said: "The concept of Oyster came about through research in our wave-tank facility at Queen's. The launch of Oyster is both a major landmark in terms of carbon-free sustainable energy production and a proud day for Queen's University Belfast, which already has a reputation as being one of the leading wave-power research groups in the world. In fact Oyster is the third prototype demonstration wave power project which the team at Queen's has instigated in the past 20 years.

"Devices such as these have the power to revolutionise the world's energy industry and help combat climate change. And we aren't stopping with Oyster. We are continuing to work with our partners in Aquamarine Power and the EMEC to develop the next generation of Oyster, by providing testing opportunities at Queen's large wave tanks facility in Portaferry which is part-funded through the University's Institute for a Sustainable World."

The marine energy industry could provide as many as 12,500 jobs, contributing £2.5 billion to the UK economy by 2020. Marine energy such as that produced by Oyster has the potential to meet up to 20 per cent of the UK's energy demands..

Thursday, September 24, 2009

"Algae prompt Des Moines to switch drinking-water rivers"

From the Des Moines Register:

Record levels of potentially toxic algae in the Raccoon River have once again forced the Des Moines Water Works to draw from the Des Moines River to keep drinking water free of poor tastes, bad smells and health risks.

Levels of blue-green algae — also known as cyanobacteria — for the past month have been higher than those of last year, when readings were the highest Water Works CEO Randy Beavers had seen in his nearly 30 years of service.

Samples collected from the Raccoon in recent weeks have frequently exceeded 20,000 cyanobacteria cells per milliliter of river water — well beyond levels that can easily be treated for use as drinking water. Tests from this week showed levels above 60,000 — the highest waterworks employees have ever measured in the Raccoon River.

In some cases, cyanobacteria can release a toxin that can sicken or even kill animals and humans.

"That's one of the reasons we go to the Des Moines River as another safety precaution should there be any unforeseen spikes in that toxin," Beavers said. "Fortunately, the toxin has been at very low concentrations."

Of further concern this year: Blue-green algae blooms have been more prevalent in the Des Moines River than in the past.

"It's problematic for us when we are, in essence, reduced to one river source," Beavers said. "Our current treatment system just has a very difficult time handling the really high counts" of cyanobacteria. "From an infrastructure standpoint, we feel water quality should be sufficient that we could draw water from either river."

...It would probably cost $1 million or more to upgrade treatment facilities to handle consistently elevated levels of cyanobacteria, Beavers said.

Instead, Beavers and others are hopeful improvements can be made throughout the 2.3-million-acre Raccoon River watershed to decrease the amount of nutrients such as nitrogen and phosphorus that feed the growth of algae blooms....

Sunday, September 06, 2009

"Turkey unable to give more water to Iraq, Syria: minister"

From TerreDaily:

(AFP) Turkey cannot give more water to Iraq and Syria, Energy Minister Taner Yildiz said Thursday as officials from the three neighbours met here to discuss the sharing of the Tigris and Euphrates rivers.

The Ankara talks follow Iraqi accusations last month that Turkey was holding back water despite a promise to increase the flow into its drought-stricken southern neighbour.

"We are aware of the need for water in our neighbours...but we do not have a lot of it in the reservoirs of our dams," Yildiz told reporters ahead of the meeting.

Turkey has increased the flow to 517 cubic meters per second (18,095 cubic feet per second) from the average 500 m3/second, the minister said.

"To be honest, it is not possible for us to increase this further. We cannot allow our own water and energy management to run into problems."

The talks were also attended by Turkey's Environment Minister Veysel Eroglu, Iraqi Water Minister Latif Rashid and Syrian Irrigation Minister Nader Bunni.

Issues to be discussed include joint measurement stations along the rivers, exchanging hydrological and meteorological data, seasonal monitoring of water levels and training programmes on climate change and the development of water sources, a Turkish statement said.

Iraq called for an urgent meeting with Syria and Turkey after the flow of water from the Euphrates river fell by more than half in less than a month.

Iraq said at the end of June that Turkey had increased the Eupharates flow from 360 m3/second to 570 m3/second to help overcome a shortage along the river which runs through Syria before reaching Iraq.

Baghdad also said that Ankara had promised to raise that to 715 cubic metres per second in July, August and September.

But last month, Iraq claimed that the amount was cut back to around only 250 cubic metres per second, around a quarter of the minimum requirement for irrigation.

Iraq and Syria have often complained that Turkey monopolises the waters of the Euphrates and Tigris through a series of dams built on both rivers as part of a massive project to irrigate its southeastern corner.

Friday, August 21, 2009

Mercury in South Carolina Fish

From TheState.com:

Fish in the lazy, blackwater rivers of South Carolina are poisoned with some of the highest levels of mercury in the country, according to a new federal study that reinforces concerns about the toxic metal’s impact on the Southeast.

The U.S. Geological Survey report, the most comprehensive to date on mercury pollution in the nation’s rivers, found mercury in every fish tested across the country from 1998 to 2005. Of those, 27 percent were so polluted they exceeded a federal standard for the safe consumption of fish, the report said.

The study found that largemouth bass in the North Edisto River of South Carolina had the nation’s second-highest concentration of mercury. Researchers took the fish from a stretch of the river near Fairview Crossroads, a tiny community near the Lexington-Aiken county line.

The report renewed fears in South Carolina about mercury-polluted fish and prompted a call for state regulators to redouble their efforts to attack the problem. Mercury can damage the nervous system and cause learning disabilities in developing fetuses and young children.

“This is all coming together to tell us what the mercury problem has really been in this state,’’ said Mike King, a Florence County activist critical of state efforts to protect anglers from eating mercury-tinged fish. “People of all color and persuasions are fishing and eating the fish. And they are ingesting mercury.’’

Rivers in other Southern states, including North Carolina, Florida, Georgia and Louisiana, were also among those plagued most by fish with high levels of mercury, the report found.

Mercury contamination in Southern rivers comes from air pollution that rains back down to earth, largely from coal-fired power plants and other industrial sources, the researchers said. The high acid content of Southern rivers, coupled with the abundance of wetlands and abundant rainfall, makes conditions right for mercury to build up in fish, said David Krabbenhoft, one of the report’s authors...

The USGS findings come as the state-owned Santee Cooper power company continues to push for a new coal-fired power plant on the banks of the Great Pee Dee River in Florence County. The multi-billion dollar power plant would release mercury near a river with fish already contaminated by the toxic metal...

Nationwide, from 1998 to 2005, scientists with the U.S. Geological Survey collected and tested more than 1,000 fish from 291 stretches of waterways.
While some of the highest levels in fish were detected in the remote blackwater streams along the coasts of Southern states, mercury also was found in high concentrations in the Northeast — and in Western streams where mining occurs. The highest mercury concentrations nationally were in fish in a Nevada stream...

Earlier this year, the Obama administration said it would begin crafting new, tougher regulations to control mercury emissions from power plants after a federal appeals court threw out plans drafted by the Bush administration and favored by industry. The EPA also has proposed a new regulation to clamp down on emissions of mercury from cement plants.

Sunday, July 26, 2009

Texas Drought

(AP) Off-duty police officers are patrolling streets, looking for people illegally watering their lawns and gardens. Residents are encouraged to stealthily rat out water scofflaws on a 24-hour hot line. One Texas lake has dipped so low that stolen cars dumped years ago are peeking up through the waterline.
The nation's most drought-stricken state is deep-frying under relentless 100-degree days and waterways are drying up, especially in the hardest-hit area covering about 350 miles across south-central Texas. That's making folks worried about the water supply — and how long it might last.
"The water table's fallin' and fallin' and fallin,' like a whole lot of other people around here," said Wendell McLeod, general manager of Liberty Hill Water Supply Corp. and a 60-year resident of the town northwest of Austin. "This is the worst I can recall seeing it. I tell you, it's just pretty bleak."
There are 230 Texas public water systems under mandatory water restrictions, including those in and near San Antonio, Dallas, Houston and Austin. Another 60 or so have asked for voluntary cutbacks. Water levels are down significantly in lakes, rivers and wells around Texas.
Liberty Hill's Web site urges its 1,400 or so residents in all-red letters to stop using unnecessary water with this plea: "If we follow these strict guidelines, we may have drinking water." The town's shortage eased some with the arrival this week of 35,000 gallons a day from a nearby water system, but residents are still worried.
According to drought statistics released by the U.S. Department of Agriculture, 77 of Texas' 254 counties are in extreme or exceptional drought, the most severe categories. No other state in the continental U.S. has even one area in those categories. John Nielsen-Gammon, the Texas state climatologist at Texas A&M University, said he expects harsh drought conditions to last at least another month.
In the bone-dry San Antonio-Austin area, the conditions that started in 2007 are being compared to the devastating drought of the 1950s. There have been 36 days of 100 degrees or more this year in an area where it's usually closer to 12.
Among the most obvious problems are the lack of water in Lake Travis and Lake Buchanan near Austin, two massive reservoirs along the Colorado River that provide drinking water for more than 1 million people and also are popular boating and swimming spots. Streams and tributaries that feed the lakes have "all but dried up," according to the Lower Colorado River Authority.
Lake Travis is more empty than full, down 54 percent. All but one of the 12 boating ramps are closed because they no longer reach the water, and the last may go soon. The receding waters have even revealed old stolen cars shoved into the lake years ago, authorities said.

Tuesday, July 14, 2009

"Iraq Suffers as the Euphrates River Dwindles"


From the New York Times:

JUBAISH, Iraq — Throughout the marshes, the reed gatherers, standing on land they once floated over, cry out to visitors in a passing boat.

“Maaku mai!” they shout, holding up their rusty sickles. “There is no water!”

The Euphrates is drying up. Strangled by the water policies of Iraq’s neighbors, Turkey and Syria; a two-year drought; and years of misuse by Iraq and its farmers, the river is significantly smaller than it was just a few years ago. Some officials worry that it could soon be half of what it is now.

The shrinking of the Euphrates, a river so crucial to the birth of civilization that the Book of Revelation prophesied its drying up as a sign of the end times, has decimated farms along its banks, has left fishermen impoverished and has depleted riverside towns as farmers flee to the cities looking for work.

The poor suffer more acutely, but all strata of society are feeling the effects: sheiks, diplomats and even members of Parliament who retreat to their farms after weeks in Baghdad.

Along the river, rice and wheat fields have turned to baked dirt. Canals have dwindled to shallow streams, and fishing boats sit on dry land. Pumps meant to feed water treatment plants dangle pointlessly over brown puddles.

“The old men say it’s the worst they remember,” said Sayid Diyia, 34, a fisherman in Hindiya, sitting in a riverside cafe full of his idle colleagues. “I’m depending on God’s blessings.”

The drought is widespread in Iraq. The area sown with wheat and barley in the rain-fed north is down roughly 95 percent from the usual, and the date palm and citrus orchards of the east are parched. For two years rainfall has been far below normal, leaving the reservoirs dry, and American officials predict that wheat and barley output will be a little over half of what it was two years ago.

It is a crisis that threatens the roots of Iraq’s identity, not only as the land between two rivers but as a nation that was once the largest exporter of dates in the world, that once supplied German beer with barley and that takes patriotic pride in its expensive Anbar rice.

Now Iraq is importing more and more grain. Farmers along the Euphrates say, with anger and despair, that they may have to abandon Anbar rice for cheaper varieties.

Droughts are not rare in Iraq, though officials say they have been more frequent in recent years. But drought is only part of what is choking the Euphrates and its larger, healthier twin, the Tigris.

The most frequently cited culprits are the Turkish and Syrian governments. Iraq has plenty of water, but it is a downstream country. There are at least seven dams on the Euphrates in Turkey and Syria, according to Iraqi water officials, and with no treaties or agreements, the Iraqi government is reduced to begging its neighbors for water.

At a conference in Baghdad — where participants drank bottled water from Saudi Arabia, a country with a fraction of Iraq’s fresh water — officials spoke of disaster.

“We have a real thirst in Iraq,” said Ali Baban, the minister of planning. “Our agriculture is going to die, our cities are going to wilt, and no state can keep quiet in such a situation.”...

Recently, the Water Ministry announced that Turkey had doubled the water flow into the Euphrates, salvaging the planting phase of the rice season in some areas.

That move increased water flow to about 60 percent of its average, just enough to cover half of the irrigation requirements for the summer rice season. Though Turkey has agreed to keep this up and even increase it, there is no commitment binding the country to do so.

With the Euphrates showing few signs of increasing health, bitterness over Iraq’s water threatens to be a source of tension for months or even years to come between Iraq and its neighbors. Many American, Turkish and even Iraqi officials, disregarding the accusations as election-year posturing, say the real problem lies in Iraq’s own deplorable water management policies.

“There used to be water everywhere,” said Abduredha Joda, 40, sitting in his reed hut on a dry, rocky plot of land outside Karbala. Mr. Joda, who describes his dire circumstances with a tired smile, grew up near Basra but fled to Baghdad when Saddam Hussein drained the great marshes of southern Iraq in retaliation for the 1991 Shiite uprising. He came to Karbala in 2004 to fish and raise water buffaloes in the lush wetlands there that remind him of his home.

“This year it’s just a desert,” he said.

Along the river, there is no shortage of resentment at the Turks and Syrians. But there is also resentment at the Americans, Kurds, Iranians and the Iraqi government, all of whom are blamed. Scarcity makes foes of everyone.

The Sunni areas upriver seem to have enough water, Mr. Joda observed, a comment heavy with implication...

On a scorching morning in Diwaniya, Bashia Mohammed, 60, was working in a drainage pool by the highway gathering salt, her family’s only source of income now that its rice farm has dried up. But the dead farm was not the real crisis.

“There’s no water in the river that we drink from,” she said, referring to a channel that flows from the Euphrates. “It’s now totally dry, and it contains sewage water. They dig wells but sometimes the water just cuts out and we have to drink from the river. All my kids are sick because of the water.”..

Friday, June 26, 2009

DESERTS CROSSING MEDITERRANEAN

From Ansa.it:

Experts say southern Italy faces severe risk of drying up.

Rome, June 25 - The Sahara Desert is crossing the Mediterranean, according to Italian environmental protection group Legambiente which warns that the livelihoods of 6.5 million people living along its shores could be at risk.

''Desertification isn't limited to Africa,'' said Legambiente Vice President Sebastiano Venneri.

''Without a serious change of direction in economic and environmental policies, the risk will become concrete and irreversible.'' A recent report by Legambiente estimated that 74 million acres of fertile land along the Mediterranean were turning to desert as the result of overexploited land and water resources.

Legambiente said that southern Italy was at severe risk in addition to the islands of Sicily and Sardinia where 11% of all arable land showed signs of drying up. ''Semi-arid coastal regions like southern Italy are prone to the effects of desertification due to farmers' dependence on water from underground aquifers instead of rainfall,'' said Legambiente spokesman Giorgio Zampetti. According to Zampetti, pumping too much fresh water out of these underground deposits can result in seawater leaking in to replace it, effectively poisoning the groundwater.

As an example of the long-term consequences, Legambiente pointed to Egypt where it said brackish groundwater had compromised half the country's farmland.

''The south of Italy isn't the only part of the country at risk,'' added Zampetti. ''Aquifers around the Po Delta in northern Italy have also begun showing signs of saltwater contamination.'' Experts said that the Po River, which is Italy's longest waterway and nearly dries up in parts when industrial consumption peaks, is one of the most visible examples of desertifying climate change in Italy. Italy is not the only country in Europe losing fertile land.

Legambiente estimated that desertification affects more than a fifth of the Iberian Peninsula with early indicators also present along the French Riviera.

Across the Mediterranean, Legambiente said that countries like Libya, Tunisia and Morocco were losing 1,000 square kilometers of fertile land every year.

Legambiente experts predict that between 1997 and 2020, desertification will have forced over 60 million people in sub-Saharan Africa to leave their homes, many of whom will head north to Europe.

The United Nations Food and Agriculture Organization in Rome ranks desertification among the chief causes of worldwide famine.

''In addition to destroying the biodiversity of ecosystems and exacerbating the problems related to global warming,'' said Sebastiano Venneri, ''desertification causes people to migrate, perpetuating a vicious cycle of social strife and overpopulation that has placed mankind's survival at risk.'' To turn back the tide on desertification, Legambiente is calling for drastic water conservation measures, particularly with regard to agriculture where it says flood irrigation is a chief culprit behind the exhaustion of local reservoirs.

Simple measures like collecting rainwater for use during drier periods could make the difference in protecting water resources, according to Legambiente...

Thursday, April 16, 2009

"1,500 farmers commit mass suicide in India"

From the Independent.co.uk:

Over 1,500 farmers in an Indian state committed suicide after being driven to debt by crop failure, it was reported today.

The agricultural state of Chattisgarh was hit by falling water levels.

"The water level has gone down below 250 feet here. It used to be at 40 feet a few years ago," Shatrughan Sahu, a villager in one of the districts, told Down To Earth magazine

"Most of the farmers here are indebted and only God can save the ones who do not have a bore well."

Mr Sahu lives in a district that recorded 206 farmer suicides last year. Police records for the district add that many deaths occur due to debt and economic distress.

In another village nearby, Beturam Sahu, who owned two acres of land was among those who committed suicide. His crop is yet to be harvested, but his son Lakhnu left to take up a job as a manual labourer.

His family must repay a debt of £400 and the crop this year is poor.

"The crop is so bad this year that we will not even be able to save any seeds," said Lakhnu's friend Santosh. "There were no rains at all."

"That's why Lakhnu left even before harvesting the crop. There is nothing left to harvest in his land this time. He is worried how he will repay these loans."

Bharatendu Prakash, from the Organic Farming Association of India, told the Press Association: "Farmers' suicides are increasing due to a vicious circle created by money lenders. They lure farmers to take money but when the crops fail, they are left with no option other than death."

Mr Prakash added that the government ought to take up the cause of the poor farmers just as they fight for a strong economy.

"Development should be for all. The government blames us for being against development. Forest area is depleting and dams are constructed without proper planning.

All this contributes to dipping water levels. Farmers should be taken into consideration when planning policies," he said.

Friday, April 10, 2009

"Water Shortages Go Global"

From the Economist:


...there is some admittedly patchy evidence that, given current patterns of use and abuse, the amount now being withdrawn is moving dangerously close to the limit of safety—and in some places beyond it. An alarming number of the world’s great rivers no longer reach the sea. They include the Indus, Rio Grande, Colorado, Murray-Darling and Yellow rivers. These are the arteries of the world’s main grain-growing areas.

Freshwater fish populations are in precipitous decline. According to the World Wide Fund for Nature, fish stocks in lakes and rivers have fallen roughly 30% since 1970. This is a bigger population fall than that suffered by animals in jungles, temperate forests, savannahs and any other large ecosystem. Half the world’s wetlands, on one estimate, were drained, damaged or destroyed in the 20th century, mainly because, as the volume of fresh water in rivers falls, salt water invades the delta, changing the balance between fresh and salt water. On this evidence, there may be systemic water problems, as well as local disruptions.

Two global trends have added to the pressure on water. Both are likely to accelerate over coming decades.

The first is demography. Over the past 50 years, as the world’s population rose from 3 billion to 6.5 billion, water use roughly trebled. On current estimates, the population is likely to rise by a further 2 billion by 2025 and by 3 billion by 2050. Demand for water will rise accordingly.

Or rather, by more. Possibly a lot more. It is not the absolute number of people that makes the biggest difference to water use but changing habits and diet. Diet matters more than any single factor because agriculture is the modern Agasthya, the mythical Indian giant who drank the seas dry. Farmers use about three-quarters of the world’s water; industry uses less than a fifth and domestic or municipal use accounts for a mere tenth.

Different foods require radically different amounts of water. To grow a kilogram of wheat requires around 1,000 litres. But it takes as much as 15,000 litres of water to produce a kilo of beef. The meaty diet of Americans and Europeans requires around 5,000 litres of water a day to produce. The vegetarian diets of Africa and Asia use about 2,000 litres a day (for comparison, Westerners use just 100-250 litres a day in drinking and washing).

So the shift from vegetarian diets to meaty ones—which contributed to the food-price rise of 2007-08—has big implications for water, too. In 1985 Chinese people ate, on average, 20kg of meat; this year, they will eat around 50kg. This difference translates into 390km3 (1km3 is 1 trillion litres) of water—almost as much as total water use in Europe...

The other long-term trend affecting water is climate change. There is growing evidence that global warming is speeding up the hydrologic cycle—that is, the rate at which water evaporates and falls again as rain or snow. This higher rate seems to make wet regions more sodden, and arid ones drier. It brings longer droughts between more intense periods of rain.

Climate change has three big implications for water use. First, it changes the way plants grow. Trees, for example, react to downpours with a spurt of growth. During the longer droughts that follow, the extra biomass then dries up so that if lightning strikes, forests burn more spectacularly. Similarly crops grow too fast, then wilt.

Second, climate change increases problems of water management. Larger floods overwhelm existing controls. Reservoirs do not store enough to get people or plants through longer droughts. In addition, global warming melts glaciers and causes snow to fall as rain. Since snow and ice are natural regulators, storing water in winter and releasing it in summer, countries are swinging more violently between flood and drought. That is one big reason why dams, once a dirty word in development, have been making a comeback, especially in African countries with plenty of water but no storage capacity. The number of large dams (more than 15 metres high) has been increasing and the order books of dam builders are bulging.

Third, climate change has persuaded western governments to subsidise biofuels, which could prove as big a disaster for water as they already have been for food. At the moment, about 2% of irrigated water is used to grow crops for energy, or 44km3. But if all the national plans and policies to increase biofuels were to be implemented, reckons the UN, they would require an extra 180km3 of water. Though small compared with the increase required to feed the additional 2 billion people, the biofuels’ premium is still substantial.

In short, more water will be needed to feed and heat a world that is already showing signs of using too much. How to square that circle? The answer is by improving the efficiency with which water is used. The good news is that this is possible: vast inefficiencies exist which can be wrung out. The bad news is it will be difficult both because it will require people to change their habits and because governments, which might cajole them to make the changes, are peculiarly bad at water policy...

To make water use more efficient, says Koichiro Matsuura, the head of UNESCO, the main UN agency dealing with water, will require fundamental changes of behaviour. That means changing incentives, improving information flows, and improving the way water use is governed. All that will be hard.

Water is rarely priced in ways that reflect supply and demand. Usually, water pricing simply means that city dwellers pay for the cost of the pipes that transport it and the sewerage plants that clean it.

Basic information about who uses how much water is lacking. Rainwater and river flows can be measured with some accuracy. But the amount pumped out of lakes is a matter of guesswork and information on how much is taken from underground aquifers is almost completely lacking.

The governance of water is also a mess. Until recently, few poor countries treated it as a scarce resource, nor did they think about how it would affect their development projects. They took it for granted...

As is often the way, business is ahead of governments in getting to grips with waste. Big drinks companies such as Coca Cola have set themselves targets to reduce the amount of water they use in making their products (in Coke’s case, by 20% by 2012). The Nature Conservancy, an ecologically-minded NGO, is working on a certification plan which aims to give companies and businesses seals of approval (a bit like the Fairtrade symbol) according to how efficiently they use water. The plan is supposed to get going in 2010. That sort of thing is a good start, but just one step in a long process that has barely begun.