From the RFF public relations machine:
Nearly all US regions stand to gain economic benefits from power plant carbon standards that set moderately stringent emission targets and allow a high level of compliance flexibility, according to a new study by scientists from Harvard T.H. Chan School of Public Health, Syracuse University, Resources for the Future, and the Harvard Forest, Harvard University as a project of the Science Policy Exchange.
The study was published today, June 7, 2016, in the open access journal PLOS ONE. The authors report large national net benefits of approximately $33 billion per year for the power plant carbon standard in the study, based on estimated costs of $17 billion per year and projected benefits of $29 billion for a subset of health co-benefits, and $21 billion for climate benefits.
While other studies have analyzed total national costs and benefits of power plant carbon standards, this is the first study of its kind to break down the costs and benefits by sub region for the entire US ....
"An Analysis of Costs and Health Co-benefits for a US Power Plant Carbon Standard," Jonathan Buonocore, Kathleen F. Lambert, Dallas Burtraw, Samantha Sekar, Charles T. Driscoll, PLOS ONE, online June 7, 2016, doi: 10.1371/journal.pone.0156308.
Visit http://journals.plos.org/plosone/article?id=info%3Adoi%2F10.1371%2Fjournal.pone.0156308 to access the study, including maps of benefits and costs.
The last paragraph of the journal article says:
As this and other studies demonstrate, the health co-benefits gained from air quality improvements associated with climate mitigation policies can be large, widespread, and occur nearly immediately once emissions reductions are realized [2,44,52]. As such, health co-benefits can offset costs and provide an important additional motivation for policies that target greenhouse gas emissions, including the U.S. Federal Clean Power Plan.
Here is "Fig 3. Net benefits by IPM Region for a moderately stringent, highly flexible carbon standard in 2020 (2010 USD) using central estimates for both cost and health co-benefits."