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UN warns world set for 2.7C rise on today's emissions pledges

October 26, 2021 / 6:18 PM
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Sharjah 24 – Reuters: Current commitments to cut greenhouse gas emissions put the planet on track for an average 2.7 degrees Celsius temperature rise this century, a United Nations 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 2C above pre-industrial levels and ideally to 1.5C.

As extreme weather events ranging from wildfires to floods have hit countries around the world, a U.N. report in August warned that global warming due to greenhouse gas emissions could breach 1.5C in the next two decades.

And the U.N. World Meteorological Organisation said ahead of the two-week event which begins in Glasgow, Scotland on Sunday that greenhouse gas concentrations hit a record last year and the world is "way off track" in capping rising temperatures.

The annual "emissions gap" report by the United Nations' Environment Programme (UNEP), which measures the gap between anticipated emissions and those consistent with limiting the temperature rise this century as agreed in the Paris accord, said updated pledges only reduce forecast 2030 emissions by an additional 7.5%, compared to the previous commitments.

If continued throughout this century, this would lead to warming of 2.7C, slightly less than the 3C UNEP forecast in its last report. A 30% cut is needed to limit warming to 2C and a 55% cut is needed to limit to 1.5C.

It said current commitments to net zero could limit warming to around 2.2C by the end of the century, but 2030 pledges so far do not put major emitters on a clear path to this.

"This report is another thundering wake-up call. How many do we need? The emissions gap is the result of a leadership gap," U.N. Secretary General Antonio Guterres told a press briefing.

"The era of half measures and hollow promises must end. The time for closing the leadership gap must begin in Glasgow."

Latest U.N. data shows 143 countries, accounting for around 57% of global emissions, have submitted new or updated emissions cut plans ahead of COP26 and their total emissions are estimated to be around 9% of 2010 levels by 2030 if implemented fully.

But if all pledges by 192 countries under the Paris Agreement are taken together, an increase of around 16% in global emissions is expected by 2030 compared to 2010, which would lead to warming of around 2.7C.

China and India, which are together responsible for around 30% of global emissions, have not yet made enhanced pledges.
October 26, 2021 / 6:18 PM

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