Rarely has a UN climate conference been so much in the public eye as COP26, which ended on Saturday. This is partly due to its urgency. Even in the run-up to the conference in Glasgow, even greater importance was attached to it than to the one in Paris in 2015. Back then, the famous 1.5-degree target was formulated but apparently quickly forgotten. The past two weeks should ensure that it remains within reach and that time is pressing.