North America 2050: A Partnership for Progress (NA2050) formally launched on March 14, 2012. NA2050 is a group of U.S. states and Canadian provinces  committed to policies that move their jurisdictions toward a low-carbon economy while creating jobs, enhancing energy independence and security, protecting public health and the environment, and demonstrating climate leadership.
NA2050 is the successor to the 3-Regions Initiative, which was a collaboration among members of the three North American regional cap-and-trade programs: The Midwestern Greenhouse Gas Reduction Accord, the Regional Greenhouse Gas Initiative and the Western Climate Initiative. NA2050 is a broader effort, addressing clean energy in addition to climate change.
Work in NA2050 primarily takes place within seven working groups: