Gulf Stream thermal energy could also be harnessed to produce electricity using the temperature difference between cold deep water and warm surface water. Gulf Stream The Gulf Stream, together with its northern extension the North Atlantic Drift, is a warm and swift Atlantic ocean current that originates in the Gulf of Mexico and stretches to the tip of Florida, and follows the eastern coastlines of the United States and Newfoundland before crossing the Atlantic Ocean. The process of western intensification causes the Gulf Stream to be a northward accelerating current off the east coast of North America. At about , it splits
Drift to the north Recent censuses have shown a slowing of the rate of drift, with increasing numbers of North Islanders heading to the South Island's popular scenic regions such as Central Otago. Drift to the north Drift to the north is a term used in New Zealand to refer to the internal migration of people from the South Island to the country's main metropolitan area, Auckland, in the northern North Island. The term is especially common in the cities of Christchurch and Dunedin, university cities whose graduates frequently head either to Auckland or the country's capital Wellington (also in the North Island) after