“Climate change science is settled.”
C’mon, man! We can say the same for evolution as a causal process for the origin of life and the differentiated development of the various life forms.
Problem is that ‘settled’ in this sense means ‘totally whacko’, jack-o. Earth’s flimsy atmosphere (forget a nearly negligible trace gas) contributes nothing to climate, but is responsible for converting climate into weather and puffing it around the planet.
As for evolution, it stands on the single, tenuous sliver of fact labeled ‘survival of the fittest’. For a resounding belly-laugh, go look at what G.K. Chesterton had to say about that.