"Speaking on the key COP26 gathering in Glasgow in November, he said that “in little more than 100 days we can save the next 100 years”.
He added: “My friends, there is still time to put a 1.5C future back in reach but only if every major economy commits to meaningful reductions by 2030, that’s the only way to put the world on a credible track to global net zero by mid-century.
“At or before Cop26 we need to see the major economies of the world not just set ambitious targets but we need to have clear plans over the next decade.
“We’re already seeing dramatic consequences with 1.2C of warming,” he warned, pointing to recent floods in Germany, Nigeria and Uganda, and wildfires in Australia, western US and Siberia.
He went on to say he was “very sorry” to say the suffering of Covid will be magnified “many times over in a world that does not grapple with and ultimately halt the climate crisis.”