Image uploaded from a quicklink (Image by Unknown Owner) Details DMCA | James E. Hansen, the nation's most outspoken scientist on global warming, is stepping down from his federal post to engage full time in activism on the issue. Hansen, who heads NASA's Goddard Institute of Space Studies in New York City, spent 46 years working at the agency. After warning Congress in 1988 that climate change posed a serious threat to the planet, he has spent much of the past quarter-century trying to persuade policymakers to take bold action to curb global carbon emissions. |