Governments around the world agreed at the conference in Copenhagen, and have repeated it at every conference on climate, that we have to stay below two degrees Celsius of warming above pre-Industrial standards.
世界各国政府在哥本哈根举行的会议上 达成共识， 并在每次气候大会上都重复的事情是： 比起前工业时期的标准， 全球变暖必须控制在2摄氏度以内，