Virgin Records founder Richard Branson has turned his Caribbean island, Necker Island, into an all-green paradise. The media mogul has become a leading environmentalist, and he's started cleaning in up the world by putting his "own house in order". He says, "Necker Island will soon be 100 per cent carbon neutral. We've chosen long-life lightbulbs and we've got electric cars. Our houses have cross breezes to reduce the use of air-conditioning. "We're examining ways to work with wind and solar power, even the power generated from someone's workout on a treadmill or stationary bicycle. "A 100 per cent carbon neutral island will be a valuable test case for other islands and countries too. "We cannot become the generation that destroyed this beauty, but instead, we must be the generation that preserved it."