Climate policies should be comprehensive

The flurry of climate regulations coming out of federal agencies is an example of what to avoid. Whether those new rules are based on laws enacted by Congress is questionable.

Case in point:

American Highway Users Alliance, a diverse group of organizations representing transportation, vehicle manufacturers, and energy trade associations, questioned the Federal Highway Administration’s (FHWA) legal authority to impose greenhouse gas (GHG) reduction requirements on state transportation departments and metropolitan planning organizations.

The Alliance is convinced even if legal authority was just...