The UN representative said "This is by no means a meeting in the shadows", but a means of facilitating frank dialogue "rather than prepared statements or a return. at established positions ”.
The Paris Agreement aims for a more ambitious 1.5 ° C temperature cap. But six years after signing the agreement, several issues remain unresolved.
UN Secretary-General Antonio Guterres and British Prime Minister Boris Johnson will hold a closed-door meeting of world leaders on the sidelines of the General Assembly in New York on Monday to strengthen climate commitments.
The roundtable comes less than six weeks before a major United Nations climate meeting, COP26, in Glasgow, aimed at ensuring the world meets its goal of keeping turn-of-the-century warming at 1.5 degrees Celsius.
“The UNGA is the last big moment on the international calendar before COP26,” British Ambassador to the UN Barbara Woodward said in a statement. “Climate change will be the UK's top priority. "
Woodward said Britain would pressure countries to "cut emissions, in particular by phasing out coal, and revitalizing and protecting nature."
A senior UN official said on Wednesday that for the past two years, leaders have held climate talks at the G7 and G20, but there has been no forum for major economies. to speak with the hardest hit countries.
Asked why the meeting was held behind closed doors, he said: "This is by no means a meeting in the shadows", but a way to facilitate a frank dialogue " rather than prepared statements or a return to established positions ”.
The meeting will include leaders from the G20, as well as developing and small island countries, and will be partly in-person, partly virtual.
It is not yet clear who or how many will attend, including, most importantly, whether the leaders of the world's two main polluters - Chinese President Xi Jinping and his American counterpart Joe Biden - will attend.
Guterres has defined three climate priorities. First, the UN calls on countries to step up their commitments to achieve net zero emissions by 2050 under the 2015 Paris Agreement.
Second, he wants developed countries to keep their pledge to raise a $ 100 billion climate action fund.
Third, he wants a “significant breakthrough” in funding adaptation projects for hard-hit countries, to protect them from events such as droughts, floods and sea level rise. wants adaptation finance to account for 50 percent of all climate finance.
Last month, the UN Intergovernmental Panel on Climate Change said the Earth's average global temperature would reach 1.5 degrees Celsius above pre-industrial levels around 2030, a decade earlier than planned three years ago.
With only 1.1 degrees Celsius of warming so far, an unbroken cascade of deadly weather disasters reinforced by climate change swept the world this summer, from heat waves melting asphalt in Canada to rainstorms transforming the streets of Chinese cities in rivers.
This month, record-breaking rainfall from Hurricane Ida devastated New York and New Jersey, killing nearly 50 people.