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Climate Change and Botswana’s Rainfall and Temperatures – May 10th, 2013

20.6S 25.3E

May 10th, 2013 Category: Climate Change, Image of the day, Rivers, Salt Flats

Botswana – May 10th, 2013

This image shows two important areas of Botswana: the Okavango Delta (upper left) and the Makgadikgadi Pans (right). It is predicted that Botswana will become hotter over the next few decades, with an expected increase of 2°C by 2050—a rate of warming of 0.27°C per decade. It is also predicted that the spatial and temporal distribution of rainfall will be disrupted by climate change.

By 2050 there will be an annual decrease in rainfall of 5 percent in the northern and western regions of the country, while southeastern regions are expected to experience a 5 percent increase in annual rainfall. During the rainfall seasons, it is expected that there will be a 10–20 percent increase during the peak rainfall months (December to February), while other months will yield reduced rainfall. The rainy season will be shorter and less reliable due to climate change, and it is expected that most rain will fall as short, sharp events. It is expected that an increase in temperature would equal an increase in the rates of evaporation and transpiration (click here for more information).

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