CO2 emission standards already working and saving $

See this previous post on the topic. In today's article on power plant CO2 emissions there is State flexibility as to how they implement the reductions, allowing for their unique circumstances. And evidence that it can work, citing "the northeast's Regional Greenhouse Gas Initiative, a nine-state pact launched in 2005 that uses a cap-and-trade system to reduce emissions." They've made greater cuts at lower projected costs due to not only using natural gas but innovations in renewable sources. The projected costs of critics do not account for savings from innovations in renewable sources because they refuse to accept 1) climate change is real and 2) that we need to invest in RE at all. All they see is the cost to their dirty energy regimes.