Thank you for your interest in joining the Under2 Coalition.

The Under2 MOU (Memorandum of Understanding) is a commitment driven by state, regional and provincial governments to reduce their greenhouse gas (GHG) emissions towards net-zero by 2050. Central to this is the public commitment by all signatories to reduce their GHG emissions by 80 to 95 percent below 1990 levels, or to 2 annual metric tons of carbon dioxide-equivalent per capita, by 2050. However, jurisdictions at all levels of government are encouraged to sign or endorse the Under2 MOU, thus committing to deep decarbonization in their jurisdictions. Please visit the Under2 Coalition page to view a full list of members.

Under2 Coalition signatories and endorsers are categorized as follows:


  • ‘State and regional government signatories’ refers to jurisdictions that are one level below national governments, including states, regions, and provinces.
  • ‘City and local government signatories’ refers to cities, counties, and all administrative divisions below state and regional level.


  •  Typically refers to national governments that wish to support the goals of the Under2 Coalition.

For more information and steps on how to join, please read the Under2 Coalition Signatory and Endorser Criteria (last updated February 2018). Please also find this document in Spanish and French.