The Prophet of Climate Change: James Lovelock

Lovelock knows that predicting the end of civilization is not an exact science. "I could be wrong about all this," he admits as we stroll around the park in Norway. "The trouble is, all those well-intentioned scientists who are arguing that we're not in any imminent danger are basing their arguments on computer models. I'm basing mine on what?s actually happening."

When you approach Lovelock's house in Devon, a rural area in southwestern England, the sign on the metal gate reads:

COOMBE MILL EXPERIMENTAL STATION

SITE OF NEW NATURAL HABITAT

PLEASE DO NOT TRESPASS OR DISTURB

A few hundred yards down a narrow lane, beside the site of an old mill, is a white, slate-roofed cottage where Lovelock lives with his second wife, Sandy, an American, and his youngest son, John, who is fifty-one and mildly disabled. It's a fairy-tale setting, surrounded by thirty-five wooded acres -- no vegetable garden, no manicured rosebushes. "I detest all that," Lovelock tells me. Partly hidden in the woods is a life-size statue of Gaia, the Greek goddess of the Earth, whom Lovelock named his groundbreaking theory after.

Most scientists toil at the margins of human knowledge, adding incrementally to our understanding of the world. Lovelock is one of the few living scientists whose ideas have touched off not only a scientific revolution but a spiritual one as well. "Future historians of science will see Lovelock as a man who inspired a Copernican shift in how we see ourselves in the world," says Tim Lenton, a climate researcher at the University of East Anglia, in England. Before Lovelock came along, the Earth was seen as little more than a cozy rock drifting around the sun. According to the accepted wisdom, life evolved here because the conditions were right -- not too hot, not too cold, plenty of water. Somehow bacteria grew into multicelled organisms, fish crawled out of the sea, and before long, Britney Spears arrived.

In the 1970s, Lovelock upended all this with a simple question: Why is the Earth different from Mars and Venus, where the atmosphere is toxic to life? In a flash of insight, Lovelock understood that our atmosphere was created not by random geological events but by the cumulative effusion of everything that has ever breathed, grown and decayed. Our air "is not merely a biological product," Lovelock wrote, "but more probably a biological construction: not living, but like a cat's fur, a bird's feathers or the paper of a wasp's nest, an extension of a living system designed to maintain a chosen environment." According to Gaia theory, life is not just a passenger on Earth but an active participant, helping to create the very conditions that sustain it. It's a beautiful idea --life begets life. It was also right in tune with the post-flower-child mood of the Seventies. Lovelock was quickly adopted as a spiritual guru, the man who killed God and put the planet at the center of New Age religious experience.

Lovelock is not an alarmist by nature. In his view, the dangers of nuclear power are grossly overstated. Ditto mercury emissions in the atmosphere, genetic engineering of food and the loss of biodiversity on the planet. The greatest mistake in his career, in fact, was not claiming that the sky was falling but failing to recognize that it was. In 1973, after being the first to discover that industrial chemicals called chlorofluorocarbons had polluted the atmosphere, Lovelock declared that the buildup of CFCs posed "no conceivable hazard." As it turned out, CFCs weren't toxic to breathe, but they were eating a hole in the ozone. Lovelock quickly revised his view, calling it "one of my greatest blunders," but the mistake may have cost him a share in a Nobel Prize.

At first, Lovelock didn't view global warming as an urgent threat to the planet. "Gaia is a tough bitch," he often said, borrowing a phrase coined by a colleague. But a few years ago, alarmed by rapidly melting ice in the Arctic and other climate-related changes, Lovelock became convinced that Gaia's autopilot system -- the giant, inexpressibly subtle network of positive and negative feedbacks that keeps the Earth?s climate in balance -- is seriously out of whack, derailed by pollution and deforestation. Lovelock believes the planet itself will eventually recover its equilibrium, even if it takes millions of years. What's at stake, he says, is civilization.

"You could quite seriously look at climate change as a response of the system intended to get rid of an irritating species: us humans," Lovelock tells me in the small office he has created in his cottage. "Or at least cut them back to size."

Lovelock's cottage in the woods is a world away from South London, where he grew up with coal soot in his lungs, coughing and pale and working-class. His mother was an early feminist; his father grew up so desperately hungry that he spent six months in prison when he was fourteen for poaching a rabbit from a local squire?s estate. Shortly after Lovelock was born, his parents passed him off to his grandmother to raise. "They were too poor and too busy to raise a child," he explains. In school, he was a lousy student, mildly dyslexic, more interested in pranks than homework. But he loved books, especially the science fiction of Jules Verne and H.G. Wells.

To escape the grime of urban life, Lovelock's father often took him on long walks in the countryside, where he caught trout by hand from the streams and gorged on blueberries. The freedom and romance Lovelock felt on these jaunts had a transformative effect on him. "It's where I first saw the face of Gaia," he says now.

By the time Lovelock hit puberty, he knew he wanted to be a scientist. His first love was physics. But his dyslexia made complex math difficult, so he opted instead for chemistry, enrolling at the University of London. A year later, when the Nazis invaded Poland, Lovelock converted to Quakerism and soon became a conscientious objector. In his written statement, he explained why he refused to fight: "War is evil."