Someone modeled the climate of a retrograde Earth (one spinning in the opposite direction): https://esd.copernicus.org/articles/9/1191/2018/
Due to the opposite-direction Coriolis forces, everything would be wildly different. Deserts, forests, tundras, all moved around.
@emilystThis is really interesting. To extend your point it seems that oceanic gyres and circulation is the key driver in all these changes.
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