World could warm by massive 10C if all fossil fuels are burned

Arctic would warm by as much as 20C by 2300 with disastrous impacts if action is not taken on climate change, warns new study

The planet would warm by searing 10C if all fossil fuels are burned, according to a new study, leaving some regions uninhabitable and wreaking profound damage on human health, food supplies and the global economy.

The Arctic, already warming fast today, would heat up even more - 20C by 2300 - the new research into the extreme scenario found.