From hemp T-shirts to homes made from shipping containers, the world is going green. And Charleston is turning the lights up on this energy conservation movement.

The city and county housing authorities recently announced they’ll spend federal stimulus dollars for over 7,000 compact florescent light bulbs, replacing all conventional incandescent light bulbs in public housing complexes. The light bulbs will conserve energy and provide proper lighting to the residents of 1,798 public housing units.

These new bulbs not only conserve energy — 75 percent less than a conventional light bulb — but also last 10 times longer. A 13-watt CFL has the same light output as a 60-watt incandescent bulb, and the conversion is expected to save each household about $8-$10 per month. —Lindsay Frost