Once Donald Trump got the US out of the Paris accord in 2017, many countries shifted gear to making progress on reducing carbon emission on their own. In Europe, dramatic moves have been made, by which governments are forcing decarbonisation. As an example, in Germany, per capita annual carbon dioxide emission has come down from the peak of 14.3 tonnes in 1979 to 8.1 tonnes in 2021. At its peak, in 1897, Germany accounted for 17 per cent of the world’s emission; in 2021 it was down to 1.82 per cent.