Globe and Mail: U.S. President Barack Obama and Chinese President Xi Jinping have raised the stakes in the battle over global climate policy, and in doing so, are forcing the hand of Prime Minister Stephen Harper.
In a deal signed on Wednesday in Beijing, the two leaders agreed to make greater efforts to rein in greenhouse gas emissions. The announcement is expected to generate momentum as nations prepare for the UN climate summit in Lima later this month with the goal of reaching an international agreement next...