The Intergovernmental Panel on Climate Change (IPCC) released its report on global warming on Monday.

And the conclusions of these experts from more than 195 countries are even worse than expected.

The co-chair of one of the three IPCC working groups, Valérie Masson-Delmotte, details this report and its challenges for Europe 1.

INTERVIEW

Humanity is it running to its doom?

The Intergovernmental Panel on Climate Change (IPCC) published its new report on the analysis of global climate change on Monday.

Result: global warming could reach the threshold of + 1.5 ° C around 2030, ten years earlier than estimated, threatening new disasters "unprecedented" humanity, already hit by heat waves and floods in series.

The paleoclimatologist and co-chair of one of the three IPCC working groups, Valérie Masson-Delmotte, was the guest of Europe 1, Monday evening, to discuss the scope of this alert.

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Dry periods, others of torrential rains 

Less than three months before the COP26 climate conference in Glasgow, the shocking observation of the UN climate experts (IPCC) sounds like a commotion: humans are "indisputably" responsible for climate disturbances.

If they want to limit the damage, we must mainly reduce methane and carbon dioxide, the two main greenhouse gases, according to Valérie Masson-Delmotte.

We will thus be able to "stabilize warming within 10 to 20 years at a level very close to the current one", she continues.

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Because the planet has already gained + 1.1 ° C between 2015 and 2019. The world sees with its own eyes the consequences already at work. Even more this summer, with the images of flames ravaging the American West, Greece or Turkey, waves overwhelming regions of Germany or China, or a thermometer approaching 50 ° C in Canada. "Climate change is already affecting all regions of the Earth and in multiple ways. It does not manifest itself in the same way in France, in metropolitan France or overseas, in the polar regions or in the tropics", explains this IPCC expert. 

Concretely, climate change results in "dry periods, longer, more pronounced, in particular around the Mediterranean, but also wet seasons and events of increased torrential rains", assures Valérie Masson-Delmotte.

"Rising sea levels are inevitable and irreversible"

As for the rising waters, again, it all depends on our reaction.

“The rise in sea level is inevitable and irreversible. But the rate of rise in sea level will depend on what we choose to do each, everywhere in the world. It can continue to accelerate if we add always more greenhouse gases. But it can also slow down "if other choices are made, analyzes the paleoclimatologist.

Before adding: "And that changes everything for all people and all ecosystems on the world's coasts. A more gradual rise also means more time to adapt."

The IPCC experts' report was drawn up from more than 14,000 scientific studies by specialists from 195 countries.

It is available on the organization's website.