This is nonsense. Congress hasn't abdicated anything, they've delegated it, and they retain the power to overrule the EPA, which means that voters have the power to elect representatives to do just that if the EPA made a bad ruling.
And in this particular case, this isn't even remotely a bad ruling. The inability for markets to properly price in their negative externalities is the reason for our current looming crisis, and making up for the failures of markets by properly imposing those externalities is one of the most important roles of government.
>Congress hasn't abdicated anything, they've delegated it, and they retain the power to overrule the EPA
Maybe the congress should do this with everything. The president can just make any rule he wants. Or maybe congress should just do their job instead of just delegating away all of their responsibility.
And in this particular case, this isn't even remotely a bad ruling. The inability for markets to properly price in their negative externalities is the reason for our current looming crisis, and making up for the failures of markets by properly imposing those externalities is one of the most important roles of government.