If you think the UN matters, then this seems good:
On September 10th 2021, the Secretary General of the United Nations released a report called “Our Common Agenda”. This report seems highly relevant for those working on longtermism and existential risk, and appears to signal unexpectedly strong interest from the UN. It explicitly uses longtermist language and concepts, and suggests concrete proposals for institutions to represent future generations and manage catastrophic and existential risks.
If you think the UN matters, then this seems good:
https://forum.effectivealtruism.org/posts/Fwu2SLKeM5h5v95ww/major-un-report-discusses-existential-risk-and-future