Ocean currents are large-scale movements of ocean water that transport heat and moisture around the globe. There are two main types of ocean currents: surface currents, which form in the upper 400 meters and are driven by wind, and deep water currents, which make up 90% of ocean circulation and are driven by differences in water density due to temperature and salinity. Deep water currents form a global conveyor belt pattern as cool, dense water sinks and warm water rises, circulating through all oceans. Ocean currents play a key role in regulating global climate and temperatures, and their disruption could significantly impact weather patterns and marine ecosystems.