tipping points

Could Climate Change cause an Ocean Tipping Point… Soon..?

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ClimateAdam

The huge ocean current known as the Atlantic Meridional Overturning Circulation (AMOC – not the Gulf Stream!) shifts vast amount of water around the world. But scientists fear that by heating the planet and melting the Greenland ice-sheet, we’re already slowing it down, with the risk that it could collapse – a potential tipping point with huge consequences around the world. And a new study (published in 2023) has tried to pin down what could happen, when. So what do we actually known about this current, does it have anything to do with the Gulf Stream, and is there anything we can do to protect ourselves?

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United in Science: We are heading in the wrong direction

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United in Science: We are heading in the wrong direction Link contains a summary of the report’s findings

Geneva, 13 September 2022 (WMO) – Climate science is clear: we are heading in the wrong direction, according to a new multi-agency report coordinated by the World Meteorological Organization (WMO), which highlights the huge gap between aspirations and reality. Without much more ambitious action, the physical and socioeconomic impacts of climate change will be increasingly devastating, it warns.

The report, United in Science, shows that greenhouse gas concentrations continue to rise to record highs. Fossil fuel emission rates are now above pre-pandemic levels after a temporary drop due to lockdowns. The ambition of emissions reduction pledges for 2030 needs to be seven times higher to be in line with the 1.5 °C goal of the Paris Agreement

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The past seven years were the warmest on record. There is a 48% chance that, during at least one year in the next 5 years, the annual mean temperature will temporarily be 1.5°C higher than 1850-1900 average. As global warming increases, “tipping points” in the climate system can not be ruled out.

… Go to article

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