At summit after summit, from Paris in 2015 to Glasgow in 2021 to Dubai in 2023, world leaders have repeated the message: We must keep global warming below 1.5 degrees. »Keeping 1.5 alive«, as the slogan went.

All those years, that target has looked enormously and increasingly difficult to reach, and now the goal set out in the Paris Agreement is being laid definitively to rest in the world’s most important climate report. World leaders have acted far too slowly, and it is now impossible to limit warming to 1.5 degrees.