AMOC Deterioration Scientists expect that if global heating persists, the AMOC would eventually degrade and will decrease by around 34% to 45% by the end of this century, which will put it close to a "tipping point" at which the environment could become irrevocably unstable. A depleted Gulf Stream will also, with potentially catastrophic effects, increase water levels on the US Atlantic coast. Stefan Rahmstorf, who co-authored the report published in Nature Geoscience on Thursday from the Potsdam Institute for Climate Effect Studies, told the Guardian that a weakening AMOC would increase the number and intensity of storms reaching Britain and carry more heatwaves to Europe.