A new report co-authored by Claremont McKenna College Prof. Mary Evans concludes that the EPA’s support for proposed changes to the Federal Mercury and Air Toxics Standards (MATS) relies on flawed benefit-cost analysis and outdated estimates.
In the report, Evans and five other economists find fault with the EPA’s removal of billions of dollars in co-benefits that result from reduced emissions of fine particulate air pollution under MATS.
“The removal of co-benefits is inconsistent with best practices and the federal government’s own guidance on conducting benefit-cost analysis,” said Evans.
The report also criticizes the EPA’s failure to update its cost-benefit analysis using the most recent scientific evidence and information; EPA used estimates from an analysis conducted in 2011.
Evans and the other authors are members of the External Environmental Economics Advisory Committee (E-EEAC), an independent organization providing the best available economic advice to the EPA. Evans is founding co-chair of the organization’s Executive Committee. The E-EEAC, which has received funding from the Sloan Foundation, was established after the EPA dissolved its own Environmental Economics Advisory Committee (EEAC) in 2018.