NO.PZ2022120703000015
问题如下:
According to the Intergovernmental Panel on Climate Change (IPCC) in 2018, the most likely impact of 1.5°C (2.7°F) warming is that:
选项:
A.Arctic summer sea ice is likely to be maintained. B.the risk of an ice-free Arctic in summer is about 50% higher. C.Arctic summer sea ice will disappear.解释:
A is correct?because a 1.5°C (2.7°F) rise in temperature could lead to "Arctic summer sea ice that is likely to be maintained."
B is incorrect because this is an impact of a 2°C (3.6°F) rise in temperature. "The risk of an ice-free Arctic in summer is about 50% or higher."
C is incorrect because this is an impact of a 3°C+ (5.4°F) rise in temperature. "The Arctic is very likely to be ice free in summer."
老师好,在经典题讲义相应的图中,没有看到50%,50%是怎么得出来的呢?