CBC: Prime Minister Stephen Harper has sent a letter to U.S. President Barack Obama formally proposing "joint action to reduce greenhouse gas emissions in the oil and gas sector," if that is what's needed to gain approval of the Keystone XL pipeline through America's heartland, CBC News has learned.
Sources told CBC News the prime minister is willing to accept targets proposed by the United States for reducing the climate-changing emissions and is prepared to work in concert with Obama to provide whatever...