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NASA's Prophet Will Give You Nightmares (Johann Hari)

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stormsIgnore James Hansen's climate predictions at your peril

Jan. 24, 2010 (Slate) -- I started reading James Hansen's new book, Storms of My Grandchildren, at the edge of a vanishing Arctic. I sat on a bare brown Greenland hillside listening to the ferocious crack and crash of the dying glaciers in the distance. As I watched the corpse of the ice sheet float by, broken into a thousand icebergs, it seemed the right place to begin the leading NASA scientist's explanation for what I was seeing. Since the year I was born, 1979, 40 percent of the Arctic sea ice has vanished. If we don't change our behavior fast, Hansen says I will live to see the day when it is all gone, and the North Pole is a point in the open ocean, reachable by boat. He stresses these are only the starting symptoms of a planetary fever that will remake the map of the world—and the capacity of human beings to survive on it. I finished reading the book at the Copenhagen climate summit, where the world's leaders gathered to offer a giant shrug.

Professor Hansen has been driven into a strange situation, and produced a strange book. For one-third of a century now, this cantankerous scientist has been more accurate in his predictions about global warming than anyone else alive. He saw these disastrous changes coming long before others did, and the U.S. government has tried to censor or sack him for his prescience. Now he has written a whistle-blower's account while still at the top: a story of how our political system is so wilfully, deliberately blind to environmental realities that we have no choice now but for American citizens to take direct physical action against the polluters. It's hardly what you expect to hear from the upper echelons of NASA: not a call to the stars, but a call to the streets. Toss a thousand scientific papers into a blender along with All the President's Men and Mahatma Gandhi, and you've got this riveting, disorienting book.

How did such an implausible American story come to pass? Hansen was born into a dirt-poor family in Iowa, to a farmer who left school in the eighth grade. But he was whip-smart and rose through university science departments, where he spent a decade studying the atmosphere of Venus. But then he noticed a more interesting story was happening right in front of him: "The composition of the atmosphere of our home planet was changing before our eyes, and it was changing more and more rapidly." Yes, we had known for more than a century that human beings were releasing warming gases into the atmosphere. Every time we burn a lump of coal or a barrel of oil, we unleash in one sudden burst greenhouse gases that took millennia to accumulate. But Hansen believed the effects were now becoming plain—and could be dangerous.

After studying the evidence, in 1981 he made a number of predictions for what a warmer world would look like by the early 21st century. He said that the Arctic ice would be retreating dramatically and the fabled "North-West Passage" would open up, making it possible to sail through the Arctic. It has happened. I have seen it. Yet he was derided at the time as "alarmist" by the political class, and the Reagan Energy Department responded by slashing his research budget.

READ MORE: Slate

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  • Created
    Saturday, January 30 2010
  • Last modified
    Wednesday, November 06 2013
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