Current commitments to cut greenhouse gas emissions put the planet on track for an average 2.7°C temperature rise this century, a United Nations (UN) report said on Tuesday in another stark warning ahead of crunch climate talks.

Governments will be in the spotlight at the COP26 conference next week to meet a deadline of this year to commit to more ambitious cut pledges, in what could be the last chance to put the world on track to limiting warming to below 2°C above pre-industrial levels and ideally to 1.5°C.

As extreme weather events ranging from...