Much of the planet sweltered in unprecedented heat in July, as temperatures soared to new heights in the hottest month ever recorded. The record warmth also shrank Arctic and Antarctic sea ice to historic lows.
https://www.noaa.gov/news/july-2019-was-hottest-month-on-record-for-planet
Stefan Rahmstorf is the head of Earth System Analysis at the Potsdam Institute for Climate Impact Research; professor of Physics of the Oceans at Potsdam University.