Canadian Press: Environmentalists on both sides of the border are cynical about reports of a prime ministerial appeal to the White House for common North American greenhouse gas emissions standards in the oil and gas sector.
Ottawa sources confirm Stephen Harper wrote U.S. President Barack Obama last month with an offer to work more closely on emissions regulations to help win approval for the embattled Keystone XL pipeline.
Details of the letter are not public, and its not known whether Harper made any concrete...