Study reveals greater climate impacts of 2C temperature rise

Analysis of difference between 1.5C and 2C of warming finds extra 0.5C would mean longer heatwaves, greater droughts and threats to crops and coral reefs

A difference of half a degree centigrade may be barely noticeable day to day, but the difference between 1.5C and 2C of global warming is a shift into a new, more dangerous climate regime, according to the first comprehensive analysis of the issue.

The scientists found the additional 0.5C would lead to longer heatwaves, greater droughts and, in the tropics, reduced crop yield and all coral reefs being put in grave danger.