To have a good chance of limiting global warming to 1.5C,

global production of coal, oil and gas must start declining immediately and steeply. Nothing that came out of Glasgow suggests this will happen. 

UN climate process does not work. This is not because the science discussed at the COP meetings is faulty. The problem is political. 

Domestically, politicians have good reason to fear that the cost of decarbonisation will be electoral defeat or social unrest.

 The repeated failures of the UN process have led many to denounce the current generation of world leaders as deficient or immoral. But different leaders, placed under the same pressures, would probably come up with similar results.

Gideon Rachman FT 15 November 2021

https://www.ft.com/content/ae6a8e8f-94db-4f06-a377-343a84e9be4d