Back in 2009 and 2010, the world’s governments agreed to keep the rise in global temperature to below 2° Celsius relative to the pre-industrial era. Yet warming is currently on course to reach 4-6 degrees by the end of the century – high enough to devastate global food production and dramatically increase the frequency of extreme weather events.
2009年和2010年，世界各国政府同意将全球气温升高幅度限制在前工业时代水平以上2℃内。但若以当前趋势计算，到本世纪末将升高4—6度——如此幅度的升温足以破坏全球粮食生产、极大增加极端天气事件的频率。