California, Washington, and Quebec announced plans to connect their carbon trading programs into a single cross-border market by 2027. The combined system would be the world's largest subnational carbon market, covering major emitters across the three jurisdictions. Supporters say linking the markets could stabilize Washington's higher carbon prices and fund clean energy projects, while critics warn that trading permits may not reduce local pollution near refineries and power plants. The move comes as federal climate policy faces political headwinds. Washington Governor Bob Ferguson framed the partnership as a sign of regional cooperation. The linked market is expected to launch in 2027, and officials hope it will lower costs for businesses while still cutting overall emissions. Environmental justice groups are watching closely to ensure frontline communities see real pollution reductions.
