The Environmental Protection Agency has said new greenhouse gas regulations, as proposed, may be “absurd” in application and “impossible to administer” by its self-imposed 2016 deadline. But the agency is still asking for taxpayers to shoulder the burden of up to 230,000 new bureaucrats — at a cost of $21 billion — to attempt to implement the rules. The EPA aims to regulate greenhouse gas emissions through the Clean Air Act, even though the law doesn’t give the EPA explicit power to do so. The agency’s authority to move forward is being challenged in court by petitioners who argue that...