“A four-degree C world would be horrendous and must be avoided at all costs”

By Stephen Leahy*

MEXICO CITY, Dec 7, 2010 (IPS/TerraViva)

Africa will be amongst the hardest hit regions of the world as the climate heats up, threatening the continent’s food security, experts agree. If global temperatures rise 2.0 degrees C, southern Africa will warm an additional 1.5 degrees to a 3.5-degree increase on average.

Such temperatures could be reached as early as 2035. The Hadley Centre for Climate Prediction and Research in Britain recently advised that a 4.0-degree C rise in the global average temperature could be reached as soon as 2060 if the ever-increasing emissions of carbon dioxide and other greenhouse gases are not curbed.

“The prognosis for agriculture and food security in SSA (Sub-Saharan Africa) in a 4°C+ world is bleak,” write the authors of a special issue of the Philosophical Transactions of the Royal Society to be published next month.

“A four-degree C world would be horrendous and must be avoided at all costs,” said Philip Thornton of the International Livestock Research Institute in Nairobi, Kenya and co-author of a paper in the Royal Society special issue “Four degrees and beyond”.

“This special issue is a call to action so we can avoid such a future,” Thornton told TerraViva.

Even if a new climate treaty came out of the final week of the 16th meeting of the Conference of Parties (COP) of the U.N. Framework Convention on Climate Change in Cancún, 2.0 degrees C looks inevitable, he said. No one is realistically expecting a comprehensive climate treaty for several years. This means southern Africa can expect to be 3.5 degrees C hotter and much drier in future, he said.

“It is going to get very difficult for rain-fed agriculture in this region,” Thornton warned.

This article was made possible by a contribution from Brewster Kneen of Canada

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