Side note: There is a quite recent amendment to the Montreal treaty, the Kigali amendment (2016), which phased out the CFC replacements with strong greenhouse

Side note: There is a quite recent amendment to the Montreal treaty, the Kigali amendment (2016), which phased out the CFC replacements with strong greenhouse effects in favour of replacements without them. This alone will save us ~0.3° warming until 2100 (if the projections are right). This is about the only positive news I've ever seen for this topic. https://ozone.unep.org/sites/default/files/Assessment_Panel/SAP-2018-Assessment-report.pdf https://ozone.unep.org/sites/default/files/Assessment_Panel/... (eg page ES.23 & ES.24) (I really love those charts.)