Scientist says Bush stifling evidence of global warming

Scientist James E. Hansen, who has twice briefed a task force headed by Vice President Dick Cheney on global warming says "In my more than three decades in government, I have never seen anything approaching the degree to which information flow from scientists to the public has been screened and controlled as it is now."

Hansen said the administration wants to hear only scientific results that "fit predetermined, inflexible positions." Evidence that would raise concerns about the dangers of climate change is often dismissed as not being of sufficient interest to the public.

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