Northeastern states begin pollution cap-and-trade system after federal inaction
Ten northeastern states have formed a coalition to check global warming. David Biello, an associate editor at Scientific American, explains the cap-and-trade greenhouse gas reduction program.
Ten northeastern states have formed a coalition to check global warming. David Biello, an associate editor at Scientific American, explains the cap-and-trade greenhouse gas reduction program. Guest: David Biello, an associate editor at Scientific American