text: There are apparent trends of humidification in most regions under global warming by 1.5 °C and 2.0 °C; but 
  the drought risk also should be taken seriously in the other regions. Under global warming by 1.5 °C the area is 
  73.6% of the whole world in which the precipitation would increase, most located in the Northern Hemisphere; 
  the area is 53.7% of the whole world in which the precipitation would increase by less than 50 mm; however, the 
  area is 26.4% of whole world in which the rainfall would decrease, mainly located in the Southern Hemisphere 
  and the middle regions of Northern Hemisphere. The distribution of precipitation under global warming by 
  2.0 °C is similar with the situation under global warming by 1.5 °C. The drought-threatened area would increase 
  by 28.5% under global warming by 2.0 °C, especially in the middle and low latitude of the Northern Hemisphere; 
  the area would expand to 26%, in which the precipitation increases more than 50 mm. In other words, the 
  extreme rainfall events (such as drought, rainstorm) under global warming by 2.0 °C would be more serious than 
  those under global warming by 1.5 °C, which is what we should be pay more attention to. 