![]() The net-zero pledges and climate plans of countries, if implemented, could limit global warming to just under 2 C, according to research published in Nature in April.īut current policies are actually set to result in about 2.6 C of warming. The world has already reached 1.1 C of global warming and is set to hit 1.5 C by the 2030s. ![]() With the political situation due to the war in Ukraine, research in that region has been further curtailed. Some areas of the global permafrost are better studied than others, Baltzer said, such as Siberia, which is a difficult environment to work in but contains the largest area of permafrost on the planet. The polar bear became an 'accidental icon' of climate change.Some tipping points could be avoided if global warming overshoots 1.5 C in the coming years but then comes back down due to rapid emissions cuts. Some of these, like the thawing of the permafrost, would release even more greenhouse gases, accelerating climate change even further.īut the study authors say that while understanding of tipping points has improved over the past decade, there remains uncertainty over several factors. These tipping points would have devastating consequences for global weather patterns, sea-level rise and biodiversity, the study highlights. The study effectively warns that the planet already left a safe climate state when it passed 1 C of global warming. The findings raise questions about whether the goal of the international Paris Agreement, which aims to limit global warming to well below 2 C and ideally below 1.5 C, is enough to stave off climate catastrophe. "What we're looking at is various negative impacts like more sea level rise, coral reef die-off and things like that becoming locked in and having to be dealt with for future generations," said the paper's co-author David Armstrong McKay, a climate and biosphere scientist and visiting fellow at the University of Exeter in the U.K. This graphic from the study maps the major climate tipping points around the world and the global warming temperature thresholds they may be triggered at. ![]()
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