Drought will be more frequent

Severe droughts like the 70s and 80s may become normal in Africa by the end of this century due to the greenhouse effect.

Computerized reproductions of the African climate published by the US National Academy of Sciences show that the common rainfall during the rainy season will decrease by 30% in the coming decades.

This conjecture was announced on the first day when climate talks resumed in Montreal.

In general, rainfall in the rainy season has been more since the 80s, at the same time as the temperature of the earth has increased, and this trend will continue. But reproductions on computers show that rainfall has dropped to an unprecedented level in the second half of this century.

The drought that ruled in the 70s and 80s can happen in the coming decades, if the gases causing the greenhouse effect are not controlled.

The main author of this study, Princeton University professor Isaac Held, said the result was a surprise, and they were trying to clarify the mechanism of drought. When these details are discovered, the conjecture is based.

But the authors say the effect of the greenhouse effect is huge, serious droughts in the future are entirely possible due to human impacts on climate change.