One of the most famous global warming scientists says climate change is becoming more extreme

One of the scientists who demonstrated conclusively that global warming was an unnatural event with the famous ‘hockey stick’ graph is now warning that giant jetstreams which circle the planet are being altered by climate change. Professor Michael Mann said extreme weather events – like the “unprecedented" drought in California last year, the flooding in Pakistan in 2010 and the heatwave in Europe in 2003 – were happening more often than they should do, even taking the warming climate into account.

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