The conservative SCOTUS is set to undermine the battle against climate change
Good. More of this needed.
With respect, deference to administrative action is not "traditional" - it pretty clearly traces to the rise of the progressive political movements in the first decades of the 20th century that sought to implement professionalized and, to use the parlance of the time, "scientific" administration in the first place. Moreover, the idea that administrative agencies should be little, subject-matter specific governments in miniature, with their own executive (enforcement), legislative (rulemaking/policy-setting), and judicial (adjudicatory) bodies and powers, all under the nominal command of the executive branch and separate from either the broader legislative or judicial bodies within the existing constitutional structure, is also not "traditional" at all, and certainly not uncontested.
There is nothing, for example, to stop Congress from appropriating itself sufficient money to form a permanent advisory body to investigate and report on matters of environmental concern, and suggest draft legislation. Similarly, though the constitution does state that federal courts are to have the "judicial power", the structure of the federal courts is not specified beyond a few details about the Supreme Court. There's nothing to stop Congress from massively expanding the number of judges to facilitate faster claim-processing, clarifying the scope and reach of lower-court judicial rulings to avoid the problem of obtaining nationwide injunctions through forum-shopping, or creating specialized courts for different types of expertise (though this type of "jurisdiction stripping" is highly controversial - it is far too easy for mono-purpose courts where one agency is involved in every case but the other party comes in cold to turn into kangaroo courts).
Thoughtful and interesting