There is still no room for complacency in matters climatic

IN JUNE Christiana Figueres, the UN's former climate chief who helped broker the Paris agreement in 2015, warned that the world has "three years to safeguard our climate". It was a hyperbolic claim, even then. New research makes it seem even more of one today. An analysis published in Nature Geoscience on September 18th, by Richard Millar of Oxford University and his colleagues, suggests that climate researchers have been underestimating the carbon "budget" compatible with the ambitions expresse...