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A crucial system of ocean currents may already be on course to collapse with devastating implications for sea level rise global weather — leading temperatures to plunge dramatically in some ...
A vital system of Atlantic Ocean currents that influences weather across the world could collapse as soon as the late 2030s, scientists have suggested in a new study — a planetary-scale disaster ...
Previous estimates about when a possible collapse of the current might occur have been much less dire. In 2019, the Intergovernmental Panel on Climate Change projected that the AMOC would weaken ...
It found within Great Britain an average temperature drop of 3.4 °C (6.1 °F) after the effect of warming was subtracted from collapse-induced cooling. A collapse of the AMOC would also lower rainfall during the growing season by around 123 mm (4.8 in), which would in turn reduce the area of land suitable for arable farming from 32% to 7%.
Even if initiated in the near future, the circulation's collapse is unlikely to be complete until close to 2300, [94] Similarly, impacts such as the reduction in precipitation in the Southern Hemisphere, with a corresponding increase in the North, or a decline of fisheries in the Southern Ocean with a potential collapse of certain marine ...
There has been a suggestion that its collapse may occur between 1.7 °C (3.1 °F) and 3 °C (5.4 °F), but this estimate is much less certain than for many other tipping points. [16] The impacts of Southern Ocean overturning circulation collapse have also been less closely studied, though scientists expect them to unfold over multiple centuries.
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Because of this, there were later efforts to establish a sea-level curve based on non-commercial, public domain data from outcrops exposed on land and thus verifiable by other researchers. In 1987–1988 a revised eustatic sea-level curve for the Mesozoic and Cenozoic eras was published in Science magazine, now known as the Haq et al. sea-level ...