@opinionsonus: At sustained warming levels of 2-3C, the Greenland and West Antarctic ice sheets will be irreversibly gone. The collapse of major Antarctic ice shelves at the end of the century, followed by increased discharge of ice, could lead to catastrophic sea level rise by 2300 of 9-15 metres, under strong warming. A 15 metre sea level rise would submerge swathes of Italy’s Po Valley, including the cities of Venice and Bologna. The city of Pisa would be inundated and Rome would likely see its portion of the Tiber River become an estuary flowing into a much closer Mediterranean Sea. #climatechange #maps #map #geology #italy

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Saturday 20 September 2025 17:18:38 GMT