The debate about decarbonisation has dominated campaigning ahead of German elections due to take place on Sunday, so much so that even a looming winter energy crisis has not changed the theme of what has become known as the "climate election".

The severe floods in mid-July that claimed more than 220 lives in Germany and Belgium merely added fuel to a debate that was already at the forefront of the campaign, notes Stefan Marschall, a professor of political science at Heinrich Heine University Dusseldorf.