Melting ice image via shutterstock . Reproduced on Resilience.org with permission. And another one bites the dust. The year 2014 was the warmest ever recorded by humans. Then 2015 was warmer still . January 2016 broke the record for the largest monthly temperature anomaly. Then came last month. February didn’t break climate change records – it obliterated them . Regions of the Arctic were were more than 16℃ warmer than normal – whatever constitutes normal now. But what is really making people stand up and notice is that the surface of the Earth north of the equator was 2℃ warmer than pre-industrial temperatures. This was meant to be a line that must not be crossed. Two degrees was broadly interpreted as the temperature that could produce further, potentially runaway warming. You can think of it as a speed limit on our climate impact. But it’s not a target speed. […]