51 Things We Can Do Slow Global Warming - 2

LIGHT UP YOUR CITY WITH LED

Cities can save energy and money by illuminating public spaces with LEDs . Last December Raligh,NOrth Caroline , turned one floor of a municipal parking garage into a testing ground for LEDs . The new white , brighter fixtures use 40% less electricity than the high-pressure sodium bulbs . ALthough they cost 2 or 3 times as muc , they can go 5 or more years without upkeep. Traditional bulbs must be replaced every 18 months. Other types of LEDs are already lighting up skyscrapers in Sweden and bus shelters in Britian , and working in traffic lights , outdoor displays and stadiums around the world : airports eveb yse LEDs on their taxiways . If your city still burning tax money on old lights , ask the mayor WHY