Cost-Benefit Analysis of Environmental Planning Often Fails

How much does it cost to get that last environmental toxin out of the environment, versus the use of the funds used elsewhere?

This exercise often shows how environmentalists fail to prove their case,  pushing for many of their reforms. To get the most exacting safety statistic they go to an extent of cost that makes the project unreasonable and impractical. Just one example is the way they go after the slightest benzine toxins in the air. (See the Earl J. Weinreb NewsHole® comments.)