They are warm or cold when compared to the temperature of water you would expect for a latitude. Ocean ... currents and are found in both the Northern and Southern Hemispheres. The map below ...

we show almost half of the heat waves and cold snaps reaching the ocean's twilight zone—between 200 and 1,000 meters—are ...

When ocean currents flow around the planet, they move warm and cold water with them, changing the climate and weather as they go. For example, Britain would actually be much colder if it wasn’t ...