The record heat wave and drought tormenting much of the U.S. is part of a “new extreme category” of weather that is most likely the result of global warming, a top U.S. government climate scientist said.
Greenland ice melting at an expanding pace may begin cooling the North Atlantic and increasing the severity of storms by 2075, said James Hansen, the former NASA scientist who raised concerns about global warming in the 1980s.
James Hansen, the former NASA climate scientist who first brought climate change to the attention of Congress in the 1980s, stepped down as head of the agency's Goddard Institute for Space Studies last month. That hasn’t stopped him traveling the globe to lobby for climate protection measures, while remaining an adjunct professor for Earth and Environmental Studies at Columbia University.
James Hansen, head of NASA’s Goddard Institute for Space Studies, was arrested outside the White House as he joined protesters in urging President Barack Obama to reject TransCanada Corp.’s $7 billion pipeline.
The drought in Texas last year, the heat wave in Russia in 2010 are among weather extremes that “certainly would not have occurred” without global warming, according to a paper by a U.S. government climate scientist.
By the time climate change reduces crop yields or frequently floods New York City subways, it would be too late to avert damage without better forecasting tools, a panel of scientists said in a report released today.