Regardess if PC global warming had been proven with the consistent results of repeatable, scientific method-based experiments, it remains that the states have never expressly constitutionally delegated to the feds the specific power to regulate, tax and spend for environmental protection purposes.
Congress is not empowered to tax for those purposes which are within the exclusive province of the States. Justice John Marshall, Gibbons v. Ogden, 1824.
From the accepted doctrine that the United States is a government of delegated powers, it follows that those not expressly granted, or reasonably to be implied from such as are conferred, are reserved to the states, or to the people. To forestall any suggestion to the contrary, the Tenth Amendment was adopted. The same proposition, otherwise stated, is that powers not granted are prohibited [emphasis added]. United States v. Butler, 1936.
In fact, the only thing proven about PC global warming is that it is a surefire excuse to win unconstitutional, unaccountable federal funding from the corrupt feds .
So Trump either has to politically force Congress to surrender state powers that corrupt Congress has stolen to tax and spend for PC global warming purposes back to the states, or lead Congress to successfully petition the states for an environmental protection amendement to the Constitution.
Likewise for unconstitutional Obamacare.
stand back and watch the pigs at the trough squeal.