Since lawsuits against governments seldom get anywhere
within the lifetime of the plaintiffs, I would not worry about the legal ramifications.
However, we really SHOULD do something to control carbon dioxide emissions, but it would cost money and interfere with the God-given right of schmucks to drive down the road in their 6,500 pound SUVs that get 12 miles per gallon. So you see, it is a matter of human rights, specifically the right to waste.