The head of the UN's climate body has warned that treating global warming as a partisan issue is dangerously out of step with reality, as he set out a stark account of the economic toll climate change is already inflicting on Europe.

“If humanity doesn't cut the fossil fuel pollution baking our planet, this summer's brutal heat, fires and droughts will seem mild compared to the permanent climate nightmare that…

The head of the UN's climate body has warned that treating global warming as a partisan issue is dangerously out of step with reality, as he set out a stark account of the…