What do you think?
We'll be glad to comment on your answer.
Air pollution often originates in one state or country but causes health and crop damage in other areas. For example, mercury from Midwestern power plants is harming plants, water, and health in eastern states. How should states, or countries, negotiate the cost of controlling these pollutants?
3 answers
that is not the answer because the question is posted by tony on friday, july 2,2010 at 8:39 pm.
as we prepare this question because i don't know