Top NASA Scientist Arrested at White House Protest of Keystone XL Pipeline

Alongside actress Daryl Hannah, religious leaders, and dozens of eco-activists arrested Monday outside the White House protesting a planned oil pipeline from Canada to the U.S. Gulf of Mexico stood an unlikely partner -- NASA's top climate scientist and government official James Hansen.

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.

Not quite a year ago, NASA climatologist James Hansen joined hundreds of Appalachian coalfield activists, including Teri Blanton, Maria Gunnoe, Bo Webb, Larry Gibson, Mickey McCoy and Bob Kincaid at a sit-in in front of the White House, and called for the abolition of mountaintop removal mining.