For too long the severity and scale of the climate crisis has been deliberately understated, but October’s release of the IPCC’s Special Report on the Global Warming of 1.5°c finally sent shockwaves into the populations of rich countries. The urgent need for action was clear with the world now in ‘decade zero’, when every decision taken in the coming years will determine the extent to which the critical 1.5°c guardrail is breached triggering run away climate change. Despite these warnings the UN estimates that current emission targets will put the world on a trajectory of at least 3.4°c and possibly up to 7°c warming.