President Bush Forgets About Global Warming

This contrasts sharply with the messages coming from the office of British Prime Minister Tony Blair over the past few days. Blair has tried to draw attention to those new scientific studies that conclude that global warming has accelerated and is much closer to dangerous tipping points than scientists had recently thought.

This week Cambridge University Press is publishing "Avoiding Dangerous Climate Change," which gathers 41 studies by established scientists from around the world.

"These studies each quantify, in a variety of ways, the risks we are already dealing with in the global warming that is clearly well under way," says economist Yohe, one of the book's editors.

"This shows the statements by the president's science adviser to be simply wrong when he states that we can't quantify the risks of global warming," says Yohe.

John H. Marburger III, Bush's chief science adviser, was quoted in The Washington Post on Sunday as saying, "We know these things are possible, but we don't have enough information to quantify the level of risk."

Yohe also says Marburger's quoted statement that "there's no agreement on what it is that constitutes a dangerous climate change" is meaningless.

Yohe has focused on evaluating numerous studies by scientists who have constructed possible "dangerous climate change" scenarios -- scenarios that he says are critical to taking any responsible action in the face of the enormous dangers of accelerating climate change, and which, he points out, are by definition crucial portraits of possible effects of global warming that can never be known precisely until they happen.

Yohe quoted a famous climatologist's saying: "These are experiments that we really don't want to be trying with the only planet we have."

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