If there was a shred of remotely reasonable rationale for doubting climate change, it was the apparent stalling of the record heat increases over the last decade. With 2013 undeniably the hottest year on record, even that shred of doubt has been eliminated.

A report from the Climate Council of Australia confirms the obvious:

A new report by the Climate Council of Australia says it would have been “virtually impossible” for 2013 to be the hottest year in the country’s record without man-made emissions in the atmosphere.

The independently-funded group used new modelling to look at the odds of extreme heat events occurring, with and without man-made emissions.

A computer simulation of the atmosphere showed that climate change tripled the odds that the heatwaves of 2012/2013 would occur as frequently as they did and doubled the odds that they would be as intense as they were.

More than 123 temperature records were broken over that summer.

The “debate” is over. Climate change is not only real, it’s the biggest crisis mankind has ever faced. Among conservatives it’s apparently not a matter of debate that ISIS represents an existential threat to freedom, but climate change does not. Truly reasonable people know it’s quite the other way around.

David Atkins

Follow David on Twitter @DavidOAtkins. David Atkins is a writer, activist and research professional living in Santa Barbara. He is a contributor to the Washington Monthly's Political Animal and president of The Pollux Group, a qualitative research firm.