Atlantic Ocean currents weakened by global warming could recover if the climate cools, according to a study by the Danish Meteorological Institute published in Science Advances. The study found no irreversible tipping point for the Atlantic Meridional Overturning Circulation, but effects could last centuries.
The study's findings on the potential recovery of Atlantic Ocean currents and the irreversible melting of the Greenland ice sheet have implications for global rainfall patterns, coastal sea-level rise, and the long-term stability of Europe's climate.
A study by the Danish Meteorological Institute suggests that Atlantic Ocean currents, weakened by global warming, could potentially recover if the climate cools. Published in Science Advances, the research found no evidence of an irreversible tipping point for the Atlantic Meridional Overturning Circulation (AMOC), though its effects could persist for centuries. The model simulated a significant slowdown of the AMOC with 7 degrees Celsius of global warming, a scenario far beyond current projections. Lead author Chuncheng Guo noted that while recovery begins as temperatures fall, it could take centuries, with effects lingering. The study also highlighted that the Greenland ice sheet, once melted, cannot be restored even if warming is reversed, potentially contributing to about 20 cm of sea-level rise. Researchers urged faster action to reduce emissions, emphasizing that preventing warming is a safer strategy than relying on future cooling.
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