The Republican governor has vetoed clean energy bills and rejected regional efforts to reduce greenhouse gas emissions.
Regional Greenhouse Gas Initiative supporters acknowledge other factors but say the program is an important piece.
One of America’s leading carbon cutters faces a series of hurdles that threaten to undermine its ability to slash emissions further.
A coalition of Northeastern states is looking to craft a regional cap-and-trade system for cars.
A task force will spend 18 months studying how to factor state carbon policies into the wholesale electricity market.