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UN chief Antonio Guterres has told the Associated Press news agency that the goal of limiting global warming to 1.5C is on "life support".

He said the COP26 summit would probably not see governments make the pledges needed to cut greenhouse gas emissions by enough.

Pressure is mounting for countries to strike a meaningful deal before the summit ends on 12 November.

But the UN secretary-general also said hope remained "until the last moment".