I'd never heard this arresting claim before. If that rate of temperature rise continued over, say, a century, then those parts of Africa would see a deathly rise of 17.5C?! Could that claim really be true?
I was told that it came from a report published in 2006 by the "Working Group on Climate Change". The full title of the report was "Africa – Up in Smoke 2: The second report on Africa and global warming from the Working Group on Climate Change and Development" and it was "written and compiled" by Oxfam and the New Economics Foundation, with the support of a wide range of environmental and development NGOs such as Greenpeace, Friends of the Earth, WWF, Cafod and the Institute of Development Studies.
Personally, I find it bizarre – and frustrating – that an otherwise exemplary series, which took years to film, has been tainted – in my mind, at least – by such a sloppy piece of research. Why rely primarily on a seven-year-old report published an NGO? Why not just directly ask climatologists who would have the latest available data to hand? And how did the BBC's researchers even come across such an obscure fact? You get the sense they simply Googled "Africa temperature rise" and went for the first thing they found.