How The World Helped Make Obama's Keystone Decision

The pipeline rejection sends a powerful statement ahead of United Nations talks.

President Barack Obama walks away from the podium, accompanied by Vice President Joe Biden and Secretary of State John Kerry after making a statement on the Keystone Pipeline, Friday, Nov. 6, 2015, in the Roosevelt Room of the White House in Washington. With the The Obama administration has rejected Canadian energy giant TransCanada's application to build the Keystone XL pipeline.
AP Photo/Pablo Martinez Monsivais