Statistics. 1  Tram and light rail systems operate in 388 cities across the world, 206 of which are in Europe; 2  Since 1985 120 light rail systems have opened; 3  Since 2000 78 systems have opened while 13 have closed. 4  15,618 km of track is in operation, with 850 km in construction and a further 2,350 km planned;
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.
Gulf Stream. The Gulf Stream is one of the fastest moving warm currents. The current is strong and the waters have a high salinity. The Gulf Stream originates in the deep waters of the Gulf of Mexico, travels around the tip of Florida and moves at nearly 6 miles per hour to the North Atlantic.This warm current is approximately 62 miles wide and 3,000 feet deep on average.arm currents invariably originate in the earth's tropical regions, along and near the equator. Atmospheric winds, the earth's rotation, even the salinity of the water affect the movement of these warm currents. Usually they flow from warmer regions to cooler ones, helping balance the earth's temperatures.