World Basics · Physical world
Oceans, Currents & Weather Systems
Winds and Earth's spin drive ocean gyres; density differences drive the slow global conveyor. Why London is warmer than Montreal, why Peru's waters teem with fish, and how El Niño reshuffles the planet's weather and commodity markets.
Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Climate & biomes; Plate tectonics. Next: Population & demographics. Follows Crash Course Geography #9, NOAA Ocean Service explainers and Khan Academy Earth science.Next: 1. Surface currents