Steven Mufson @StevenMufson
A key dispute within the Democratic Party revolves around cap-and-trade tool that gives companies some flexibility in return for deep GHG emissions cuts. It's technical, or was until environmental justice activists raised it in deliberations over EPA's next chief — PolitiTweet.org
Lyndsey Layton @LyndseyLayton
Mary Nichols, the "queen of green", seemed likely for EPA chief. But now some environmental activists are objecting… https://t.co/WDtDjfm3ZI
