Ocean currents can be classified by temperature and origin: cold currents typically flow along eastern ocean boundaries (equatorward, driven by upwelling of cold deep water) or form part of large-scale wind-driven circulation like the Antarctic Circumpolar Current, while warm currents typically flow along western ocean boundaries (poleward, carrying warm tropical water to higher latitudes).
The Circumpolar Current (Antarctic Circumpolar Current), the California Current, and the Peru (Humboldt) Current are all cold currents — the Circumpolar Current continuously circulates cold...
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