Rahmstorf, climate scientist, back in headlines as oceans warm and AMOC fears rise; Potsdam prof and GHG skeptic-turned-warnist. Bio: German oceanographer, physics of the oceans professor since 2000.
Recent studies confirm that global warming has accelerated significantly since 2015, with the Earth heating at about 0.35°C per decade—nearly double the previous rate. February 2026 saw extreme rainfall and flooding in Western Europe, while Arctic sea ice reached its third-lowest extent on record. Compound heat and drought extremes are rising rapidly, increasing risks of flash droughts and ecosystem tipping points.