Congress delegated their authority to the EPA. Congress is empowered to retain that authority and they're empowered to overrule any EPA regulation they disagree with. Congress retains all the power.
When it comes to the Supreme Court - that's it. Congress can't do anything about Supreme Court rulings. Your comparison of the EPA to the Supreme Court is misguided.
>>Congress can't do anything about Supreme Court rulings.
Actually, they can, that is the whole point - congress has the power to pass laws - SC does not. That is exactly what the SC just told congress to do - their job.
If Congress is adhering to their oath and acting in good faith then they may not pass laws that violate the Constitution. The Supreme Court determines what the Constitution does or doesn't say, which impacts the laws Congress may or may not pass. Putting this together we conclude Congress can't do anything about Supreme Court rulings.
Congress can’t just say “do whatever you want to fix X problem”. They have to be explicit with what powers they delegate to the executive branch and what they are permitted to do. Otherwise the law is plain unconstitutional since breaks the fundamental separation of powers. The purpose of SCOTUS is not to decide cases based on the desired outcome. It’s to decide based on what the law actually says, not what it should say.
but you are OK with the 'unelected council of wizards' at the EPA wielding their god-like authority instead?