The basics of climate change

– A fairly comprehensive yet simple summary of climate change, its causes and consequences:
https://www.unep.org/interactive/emissions-gap-report/2020/

– What does 1.5 or 2 degrees of global warming mean? What does the famous IPCC report from 2018 say about this?
https://www.theguardian.com/environment/2018/oct/08/global-warming-must-not-exceed-15c-warns-landmark-un-report