Here is more about Obama's view of coal. And, since he talks about greenhouse gases, this would also apply to natural gas fired power plants. It would also have an impact on automobiles. Basically this policy would shut down the economy of the United States. I can't imagine that Democrats could be dumb enough to implement such a policy. Obama may be and probably is too ignorant of science and economics to understand, but surely some of his advisers that they might not survive the revolution that such a policy would cause. It is interesting that, despite all of the data available now showing that the greenhouse gas induced catastrophic warming hypothesis is simply not valid, politicians still operate as if it were true. Here is another story about Obama's statement.

http://www.pittsburghlive.com/x/pittsburghtrib/blogs/fortyfourthestate/show_comments.php?entry_id=3471