Almost every religion likes to accumulate various superstitions, arbitrary meaningless answers to pretty much everything. The climate alarmist religion is doing it, too. One of the silliest superstitions that have been gradually incorporated into the religion of climate hysteria is the "2 °C climate target" – the idea that we are obliged to avoid the warming of the Earth by more than 2 °C above "pre-industrial levels" because otherwise the Mother Climate would show us Her anger.
As far as I remember, I have never dedicated a blog post to this staggeringly stupid meme – I think that it's only repeated by completely science-illiterate politicians (who love the idea that they will be responsible for the corresponding planning) and other laymen, not by people with some education in natural sciences. Well, as we were just shown, this amazing idiocy is actually parroted by some of the people who like to be called (natural) scientists, too.
Anthony Watts reacted with a WOW when he read a Nature piece by the emeritus astrophysicist Charles Kennel and the political scientist David Victor
Ditch the 2 °C climate goal (full text, Nature)Kennel and Victor explain that the other climate alarmists should no longer mock themselves with this particular superstition. Many of their arguments are valid but the article is still written from the viewpoint of climate alarmists – the assumption is that there must still be some global climate problem and some other way to quantify this problem. So of course that I wouldn't endorse this article as a whole.