EPA
Benefits of Clean Air and Water Dwarf Costs 10 to 1
EPA tops benefit-cost ratios across agencies
The rebound effect is overplayed
Increasing energy efficiency brings emissions savings.
Cut Power Plant Pollution
No Congress? No problem. Here's what Obama can do now.
An Optimist’s Case for Climate Policy
strategy+business
The Economic Case for Environmental Rules
Overall, the benefits of the 1970 Clean Air Act exceed costs by a factor of 30 to 1.
Build a cocoon around your kid, just don’t open the window
Moms Clean Air Force
30 to 1
Large benefit-cost ratios are good. They also mean more can and must be done.