Edward Markey actually said...
Since the RGGI was put in place, there has actually been a 40 percent reduction in greenhouse gases in those States on average where it was put in place but in addition, it has helped to save consumers money, created jobs, generated over $750 million in economic value in the State of Massachusetts alone from 2009 to 2013.
Context
Markey highlights the success of RGGI in reducing emissions and boosting the economy.
06/17/2014