AuthorJohn Spill Down under, Australia has been sweltering away in baking hot temperatures, with mean January temperatures of over 30°C making it the hottest month on record. On the other side of the planet, parts of the US are currently in the grip of a deep freeze as the polar vortex, a circulation of high-altitude Arctic winds, extended southwards, bringing temperatures of -30°C to Chicago. There has been much discussion in the media about whether climate change has a role in all this, with one of the most prominent sceptics, Donald Trump, in a recent tweet asking ‘What the hell is going on with Global Warming?’ A good question, so without further ado, here’s a handy explanation which (hopefully) will clarify how exactly climate change is involved in extreme weather across the planet.
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