The 1,400-page cap-and-trade legislation pushed through by House Democrats contains a new federal policy that residential, commercial, and government buildings be retrofitted to increase energy efficiency, leaving it up to the states to figure out exactly how to do that. This means that homeowners, for example, could be required to retrofit their homes to meet federal “green” guidelines in order to sell their homes, if the cap-and-trade bill becomes law. The bill, which now goes to the Senate, directs the administrator of the Environmental Protection Agency (EPA) to develop and implement a national policy for residential and commercial buildings. The...