Recent research indicates a potential weakening of the Atlantic Meridional Overturning Circulation (AMOC). Which of the following is NOT a likely direct consequence of a significant slowdown or collapse of the AMOC?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Increased warming in the Arctic region.
While global warming drives AMOC’s decline, a collapse would actually lead to relative cooling in the North Atlantic and parts of the Arctic. The AMOC acts as a conveyor belt, transporting warm tropical waters northward. A significant slowdown would stop this heat transfer, resulting in a cooling effect over the North Atlantic instead of increased warming. Other consequences like monsoon shifts, cooling in Europe, and sea-level rise on the US East Coast remain highly likely.