[themoose8]

2C is criticized as insufficient, because even a warming of two degrees will have serious consequences for humans and the environment, as demonstrated in particular by the IPCC Special Report on the consequences of a global warming of 1.5C [1].

[1] https://en.m.wikipedia.org/wiki/Special_Report_on_Global_War...

[ZeroGravitas]

This is actually spelled out in the first paragraph of the link they provided, which makes me wonder why they linked to it in the first place.