就在本周，一个由27位著名科学家组成代表五大洲的团体发布了一份联合声明，指出把所有已知化石燃料储备烧尽将产生3 800十亿吨的二氧化碳，或1 053GtC，其中煤炭占了一大半。
Just this week, a group of 27 prominent scientists, representing all major continents, issued a joint statement that explains that burning all known fossil-fuel reserves would produce about 3,800 gigatonnes of CO2, or 1,053 GtC, with coal alone accounting for more than half.