The Atlantic Ocean is the second largest of the world's five oceanic divisions, with an area of about 85,133,000 km². It covers approximately 17% of Earth's surface and about 24% of its water surface area. From Wikipedia
Recent climate models project an 80% AMOC slowdown under 2°C warming with winter temperatures dropping as low as –30°C, sea levels rising by 50 cm, precipitation falling by 20%, intensified storms, higher flood risk.