By comparing the output of leading models to 20th-century climate records and extrapolating present trends in gas emissions, the researchers calculated a 90 percent chance that the planet will warm by 1.0 to 2.5 degrees C by the 2040s.

• 通过对比主要的模式数据和二十世纪的气候记录以及推算目前气体排量的变化趋势，研究人员计算出这个星球到二十一世纪四十年代有90%25的可能性会升温1对到2.；5度。