The Supremes to weigh in on global warming

A good many states, cities, organizations, etc. have brought suit against the EPA in an effort to force the agency to regulate greenhouse gas emissions from automobiles. This is the first case regarding global warming to reach the high court and as such, is a very significant milestone in the ongoing battle. If the court finds that the EPA can regulate auto emissions, the EPA can compel Detroit to manufacture greener, more efficient vehicles. I am not sure if, economically, that is a good thing but from an environmental point of view, it is a very good thing indeed.