Countries are failing to take the action needed to stave off the worst effects of climate change, a UN report has found, and the commitments made in the 2015 Paris agreement will not be met unless governments introduce additional measures as a matter of urgency. Gunnar Luderer, one of the authors of the UN report and senior scientist at the Potsdam Institute for Climate Impact Research in Germany, said: “Only a rapid turnaround here can help. Emissions must be reduced by a quarter by 2030 [to keep warming to no more than 2C (3.6F) above pre-industrial levels] and for 1.5C emissions would have to be halved.” In all, a tripling of effort may be needed to keep warming to less than 2C, meeting scientific advice on avoiding the most dangerous effects of climate change.

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