Polar currents are large-scale oceanic flows that occur in the polar regions, primarily in the Arctic and Antarctic oceans. These currents are driven by factors such as wind patterns, the Earth's rotation, and differences in water temperature and salinity. They play a crucial role in regulating the global climate by redistributing heat and influencing weather patterns. In the Arctic, the main current is the Transpolar Drift, which moves sea ice and water from the Siberian coast towards the Atlantic Ocean. In the Antarctic, the Antarctic Circumpolar Current encircles the continent, connecting the Atlantic, Pacific, and Indian Oceans. These currents are vital for marine ecosystems and help maintain the balance of oceanic temperatures.