Our current global target of 2C is too optimistic, according to the latest scientific research. No fewer than five meteorological institutions have released their predictions as to how much the world will heat up before 2030 if our current efforts to curb greenhouse gas emissions continue. The numbers range between 2.7C and as much as 3.7C, leaving our previous ambition of 2C in the dust. It gets worse: according to the UN, if we don't act now on global warming, temperatures could rise by as much as 4.8C.
