Removing the worst-case climate future for Earth isn’t failed science, as climate sceptic Donald Trump claims. It’s a sign climate action has made a difference.

the seven new scenarios

a high-emissions scenario – known as RCP8.5 and its successor SSP5-8.5 – had been removed. Under these worst-case scenarios, nations would make no effort to cut emissions and expand fossil fuel use.

Taking RCP8.5 off the table is a sign of progress – we’ve avoided the worst-case scenario. But we have also missed the best case future.