One of the world’s most influential scientists has warned that climate change could devastate Africa, predicting an increase in catastrophic food shortages.
Professor Sir Gordon Conway, the outgoing chief scientist at the UK’s Department for International Development, and former head of the philanthropic Rockefeller Foundation, argued in a new scientific paper (pdf) that the continent is already warming faster than the global average and that people living there can expect more intense droughts, floods and storm surges.
There will be less drinking water, diseases such as malaria will spread and the poorest will be hit the hardest as farmland is damaged in the coming century, Conway wrote.
"There is already evidence that Africa is warming faster than the global average, with more warm spells and fewer extremely cold days. Northern and southern Africa are likely to become as much as 4C hotter over the next 100 years, and [will become ] much drier," he said.
Conway predicts hunger on the continent could increase dramatically in the short term as droughts and desertification increase, and climate change affects water supplies. "Projected reductions in crop yields could be as much as 50% by 2020 and 90% by 2100," the paper says.
Conway held out some hope that east Africa and the Horn of Africa, presently experiencing its worst drought and food shortages in 20 years, will become wetter. But he said that the widely hoped-for 8-15% increase in African crop yields as a direct result of more CO2 in the atmosphere may fail to materialize.
Source: The Guardian
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