After months of legal and political wrangling, the Obama administration on Wednesday rejected TransCanada's application to build the Keystone XL pipeline through the United States. Republican immediately criticized the decision.
Believe it or not, the Keystone XL pipeline is not the only pipeline in North America. Pipelines that carry natural gas from wells to refineries stretch hundreds of miles in the US, crossing public and private land. Many of these pipelines are planned for densely populated areas, and in some states, local opposition has been fierce.
Anchor Aaron Schachter talks with The World's environment editor Peter Thomson about an oil spill that may have big consequences for a plan to pump oil from Alberta to the Pacific Ocean, and play into the fight over the Keystone oil pipeline in the US.