The largest ocean current in the world is the Antarctic Circumpolar Current (ACC). This powerful ocean current encircles Antarctica and connects the Atlantic, Pacific, and Indian Oceans. Flowing Eastward, it plays a crucial role in regulating global climate by redistributing heat and influencing marine ecosystems. The ACC is known for its strength and vast scale, making it an essential part of the planet's oceanic conveyor belt. Scientists study this current to better understand its impact on weather patterns, sea ice movement, and the overall health of ocean environments, particularly in the context of climate change.