If you can look at these figures from the IPCC and still claim that there’s no such thing as anthropogenic climate change then, well, you’re a fool. (And, yes, I’m talking to all of the participants in the theatre of the absurd otherwise known as the Heartland Institute.)

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I’m totally open to discussing whether—or the extent to which—climatic change warrants an aggressive and coordinated response from the international community, and from policy makers. Indeed, these are precisely the issues we ought to be discussing, from the standpoint of both adaptation and mitigation.  However, to deny the existence of anthropogenic climate change is both an affront to science and a betrayal of future generations.

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But don’t just take my word for it; listen to the late, great Stephen Schneider who was making this point when I was an undergraduate.

It’s Tuesday, the 11th of April, 2017; not a normal day.

Follow me on Twitter at @DecisionLab.