Warm current: warming and humidifying, just like a latitude area, the salinity and temperature of the sea area where the warm current passes are relatively high, and the temperate maritime climate in western Europe is directly related to the North Atlantic warm current. Without the North Atlantic Warm Current,

In the western warm current climate, the seaports in Britain and Norway will be frozen for more than half a year, and the Murmansk seaport in Russia will not be frozen all year round because of the North Atlantic warm current.

Cold current: cooling and dehumidification, like a latitude area, the salinity and temperature of the sea area where the cold current passes are relatively low.

The coastal cold current has played a certain role in the formation of desert environment on the west coast of Australia and the Pacific coast of Peru.

Formation of fishing grounds at the intersection of cold current and warm current: Hokkaido fishing ground in Japan, Newfoundland fishing ground in Canada, UK.

North Sea Fishing Ground in Marine Living Countries