INTERVIEW-
NASA's Hansen concerned about Canada's oil sands
Wed Feb 18, 2009 5:41pm GMT
By Deborah Zabarenko, Environment Correspondent
WASHINGTON, Feb 18 (Reuters) - Canada's oil sands are an environmental "wild card," NASA's James Hansen said in an interview before President Barack Obama's trip to Ottawa, where energy and climate change will be on the agenda.
As director of the U.S. space agency's Goddard Institute for Space Studies in New York City, with a focus on climate change, Hansen has long opposed the burning of oil, gas and coal for their contribution to global warming.