JUAN GONZALEZ: Dr. James Hansen is widely regarded as the leading climate change scientist in the country. It was his testimony to a Senate committee in 1988 that first brought the threat of global warming to the world’s attention. For the past quarter of a century he has headed the Goddard Institute for Space Studies, NASA’s premiere climate research center.
Just over a year ago, Dr. Hansen went public with a charge that made headlines around the world, that the Bush administration had been trying to silence his warnings about the urgent need to address climate change.
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