Between 1990 and 2006 emissions trading systems reduced SO₂ emissions by power plants in the U.S.by 53% at what cost to the industry?

Question

Quizplus · Accepted Answer

The question specifically mentions that the emissions trading systems reduced SO₂ emissions by 53% at a cost to the industry, so options E and C can be eliminated. Option A is an extreme outlier and is not likely to be true. Option D is closer to the truth, but it is still higher than what the industry expected. Option B is the best choice as it suggests that emissions trading systems were more cost-effective than expected by the industry.

Between 1990 and 2006 Emissions Trading Systems Reduced SO₂ Emissions