@MatthiasSchmelzer
Alt text: Average global temperature from 20,000 BC, showing the range of temperatures before and during human civilisation. Since the start of the industrial revolution, the line is rising almost vertically, to +1.1℃ now, just over the top of the "safe climate zone", and a continued rise forecast into increasingly deep red zones: 2℃ expected before 2050 under current policies, 4℃ expected before 2100 under current policies.