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Climate: the IPCC publishes its diagnosis and its prescription this Monday


UN climate experts gathered in Switzerland deliver the latest scientific consensus on global warming and on humanity's urgent response to this existential challenge.

Worse and worse impacts but solutions under our noses: nearly nine years after their last synthesis, the UN climate experts gathered in Switzerland on Monday deliver the latest scientific consensus on global warming and on the urgent response of the humanity to this existential challenge.

The Intergovernmental Panel on Climate Change (IPCC) is due to publish at 2:00 p.m. (1:00 p.m. GMT) the synthesis of its 6th assessment report, a summary of the more than 10,000 pages of work it has published since its previous synthesis. end of 2014.

In nine years, the scientific community has established that global warming caused by human activity is occurring faster and stronger than expected.

And highlighted the risk of reaching

"tipping points"

, synonymous with major irreversible impacts, even runaway.

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After a week of meetings in Interlaken (Switzerland), the representatives of the member states of the IPCC approved on Sunday the "summary for decision-makers", some thirty pages summarizing the state of science and the panorama of possible solutions, in a form understandable by all.

This highly political document had to be approved line by line by the delegates of the countries represented in all 195 Member States.

“We are approaching the point of no return, of exceeding the maximum warming threshold of 1.5 degrees

,” UN chief António Guterres recalled in a video message at the opening of the session on March 13. .

"Leaders need sound, frank and detailed scientific guidance to make the right decisions...and accelerate the exit from fossil fuels and the reduction of emissions

," Guterres said.

Global stocktake at COP28


"summary for decision-makers"

will be a major point of support for civil society, which has its sights set on the meeting of COP28, in December in Dubai, where a first global assessment of the countries' commitments to meet the objectives of Paris is expected.

Containing warming to well below 2°C, and if possible 1.5°C, relative to the pre-industrial era, as called for in the 2015 Paris Agreement, seems elusive without a rapid reduction in emissions greenhouse gases, starting with those related to oil, gas and coal.

The world is now at nearly 1.2°C of warming and the multiplication of extreme events, predicted by the first work of the IPCC, is already occurring on all continents.

Read alsoDrought: will we run out of water this summer?

In 2022, the influence of climate change on the intensity and recurrence of extreme phenomena has been demonstrated for the devastating floods in Pakistan or Nigeria, the exceptional heat wave in Argentina and Chile or the associated heat waves and droughts in Europe and the United States, according to the scientific network World Weather Attribution.

In addition to the "summary for decision-makers", the final synthesis of this 6th report also includes a technical document of around 70 pages, constituting the summary of all the work: the three main sections published in 2021 and 2022 - on the physical evidence of the warming, on its impacts, and finally on mitigation measures - and three special reports (on the consequences of a warming of +1.5°C, on the oceans and the cryosphere, and on the emerged lands).

Source: lefigaro

All tech articles on 2023-03-20

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