Which best describes the cost-benefit results of the first 20 years of the Clean Air?
A) Costs have been far greater than the benefits.
B) In 2010, alone, estimated benefits exceeded costs by 4 to 1.
C) Because many of the benefits of clean air are intangible, it is not possible to make such comparisons.
D) While costs have exceed benefits 2 to 1, benefits are expected to increase in the coming decades.

Question

Quizplus · Accepted Answer

According to the Environmental Protection Agency (EPA), in 2010 alone, the estimated benefits of the Clean Air Act exceeded the costs by a ratio of 4 to 1. While it is difficult to make exact cost-benefit analyses due to the intangible benefits of clean air, this ratio suggests that overall the benefits have been greater than the costs.

Which Best Describes the Cost-Benefit Results of the First 20