The controversy over the Keystone XL pipeline extension continues. Last month’s final environmental impact analysis from the State Department revived the debate over the pipeline, which would carry Canadian crude oil through the United States to Port Arthur, Tex. Supporters and opponents are pressuring the White House.
Canada's Keystone pipeline South of Fort McMurray, Alberta, swaths of trees were removed to make way for an underground oil pipeline that carries product from the oil sands mines to processing facilities. Most of the proposed Keystone XL pipeline will be underground as well. Michael S. Williamson/The Washington Post Buy Photo