The 2015 Paris Climate Agreement was a historic agreement that united almost every country in the world around a common goal: to limit global warming to "well below" 2°C above pre-industrial levels and, if possible, aim for 1.5°C. Since then, 1.5°C has become a rallying cry for governments and activists, the focus of countless scientific models and predictions. Just six years later, at the COP26 climate summit in Glasgow, many described the target as being in intensive care; Now some scientists say it's time to unplug.

The problem is not that limiting global temperature rise to 1.5°C is now impossible, as many climate optimists would be quick to point out, but that the pace at which emissions have been falling so far makes it increasingly unlikely it will happen. (Alexandre Rossi, more at agbrescia.it)