How does global warming affect the Ocean currents and then affect hurricanes? Thanks!?

Answer 1

To give you an example, the Atlantic ocean current is vital to the weather pattern for the Caribbean and the eastern US coast. In the good old days warm water from the Caribbean flowed northward along the western side of the Atlantic ocean. Since the water current is relatively warm compared to the deep stationary water, it did spawn hurricanes. When this warm water approach the arctic circle where the glaciers are, it is cooled and sinks deep in the ocean. This cooled water returns to the Caribbean through the eastern part of the Atlantic ocean. And the cycle repeats. However, due to global warming there has been increased melting of the glaciers thus reducing the salinity of the ocean water. This make the water not to sink deep and stay cold. This warmer water returning to the Caribbean causes the el nino effect. Which in turn increases the number and severity of the hurricanes. As global warming continues, you'll see more category 3 and especially 4, possibly few at 5.