by Bill McKibben
James Lovelock is among the planet's most interesting and productive scientists. His invention of an electron capture device that was able to detect tiny amounts of chemicals enabled other scientists both to understand the dangers of DDT to the eggshells of birds and to figure out the ways in which chlorofluorocarbons (CFCs) were eroding the ozone layer. He's best known, though, not for a gadget but for a metaphor: the idea that the earth might usefully be considered as a single organism (for which he used the name of the Greek earth goddess Gaia) struggling to keep itself stable....
This homeostasis is now being disrupted by our brief binge of fossil fuel consumption, which has released a huge amount of carbon dioxide into the atmosphere. Indeed, at one point Lovelock predicts -- more gloomily than any other competent observer I am aware of -- that we have already pushed the planet over the brink, and that we will soon see remarkably rapid rises in temperature, well beyond those envisioned in most of the computer models now in use – themselves quite dire. He argues that because the earth is already struggling to keep itself cool, our extra increment of heat is particularly dangerous, and he predicts that we will soon see the confluence of several phenomena: the death of ocean algae in ever-warmer ocean waters, reducing the rate at which these small plants can remove carbon from the atmosphere; the death of tropical forests as a result of higher temperatures and the higher rates of evaporation they cause; sharp changes in the earth's "albedo," or reflectivity, as white ice that reflects sunlight back out into space is replaced with the absorptive blue of seawater or the dark green of high-latitude boreal forests; and the release of large amounts of methane, itself a greenhouse gas, held in ice crystals in the frozen north or beneath the sea...
Even without huge technological breakthroughs, which he says are tantalizingly near, the current hardware can be made steadily cheaper. He predicts the industry will grow 20 to 30 percent annually for the next forty years, which is akin to what happened with the last silicon-based revolution, the computer chip. No surprise, too, about who will own that industry -- almost all the solar panel plants are now in Japan and Germany.
You can see signs of this change already. When I was in Tibet this summer, I repeatedly stumbled across the yak-skin tents of nomadic herders living in some of the most remote (and lofty) valleys in the world. They depended on yak dung, which they burned to cook food and heat their tents, and also often on a small solar panel hanging off one side of the tent, powering a light bulb and perhaps a radio inside. Every small town had a shop selling solar panels for a price roughly equivalent to that of a single sheep. Solar power obviously makes sense in such places, where there's probably never going to be an electric line. But it also increasingly makes sense in suburban developments, where new technologies like solar roof tiles are reducing the cost of outfitting a house to use solar power; in any event, the cost of such tiles would be a small part of the government-subsidized mortgage....But even the widespread adoption of solar power would not put an end to the threat of global warming. The economic transition that our predicament demands is larger and more wrenching even than that. Some scientists have estimated that it would take an immediate 70% reduction in fossil fuel burning simply to stabilize climate change at its current planet-melting level. And that reduction is made much harder by the fact that it is needed at just the moment that China and India have begun to burn serious quantities of fossil fuel as their economies grow. Not, of course, American quantities -- each of us uses on average eight times the energy that a Chinese citizen does -- but relatively serious quantities nonetheless....
There's another way of saying what is missing here. Almost every idea that might bring us a better future would be made much easier if the cost of fossil fuel was higher -- if there was some kind of a tax on carbon emissions that made the price of coal and oil and gas reflect its true environmental cost. (Gore, in an important speech at New York University last month, proposed scrapping all payroll taxes and replacing them with a levy on carbon.) If that day came -- and it's the day at least envisioned by efforts like the Kyoto Treaty -- then everything from solar panels to windmills to safe nuclear reactors (if they can be built) would spread much more easily: the invisible hand would be free to do more interesting work than it's accomplishing at the moment. Perhaps it would actually begin to operate with the speed necessary to head off Lovelock's nightmares. But that will only happen if local, national, and international officials can come together to make it happen, which in turn requires political action....
The technology we need most badly is the technology of community -- the knowledge about how to cooperate to get things done. Our sense of community is in disrepair at least in part because the prosperity that flowed from cheap fossil fuel has allowed us all to become extremely individualized, even hyperindividualized, in ways that, as we only now begin to understand, represent a truly Faustian bargain. We Americans haven't needed our neighbors for anything important, and hence neighborliness -- local solidarity -- has disappeared. Our problem now is that there is no way forward, at least if we're serious about preventing the worst ecological nightmares, that doesn't involve working together politically to make changes deep enough and rapid enough to matter. A carbon tax would be a very good place to start.
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I thought that the yak-skin tent nomads with portable solar panels was esp. interesting. Interesting to know that such alternatives are catching on in other places even if they are not very common here yet.
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