The Gary Null Blog

As President Obama’s deadline to approve or disapprove licensing of the Keystone XL tar sands pipeline draws closer, NASA’s lead climatologist, Dr. James Hansen, addressed reporters at the National Press Club to explain the grave consequences of approving such a project.

James Hansen, head of NASA's Goddard Institute for Space Studies, addresses a crowd of protesters at a White House climate change rally in October 2010. “We have a planetary emergency,” Hansen, an adjunct professor at the Department of Earth and Environmental Sciences at Columbia University and at Columbia’s Earth Institute, told reporters Monday. (Credit: Chesapeake Climate) “We have a planetary emergency,” Hansen, an adjunct professor at the Department of Earth and Environmental Sciences at Columbia University and at Columbia’s Earth Institute, told reporters Monday.