The IPCC was established in 1988 by the UN to provide policymakers with regular scientific assessments on the current state of knowledge about climate change.
Large membership includes trade unions, businesses, NGOs, UN agencies and citizen’s groups. Tracks 21 country policies across 6 themes:
https://greeneconomytracker.org/
The U.S. Global Change Research Program (USGCRP) is a Federal program mandated by Congress to coordinate Federal research and investments in understanding the forces shaping the global environment, both human and natural, and their impacts on society.