Abstract
Green commitment seems to be trendy in today's companies' strategy, but tycoons are more and more involved in environmental concerns too. The Sunday Times listed the 100 most environmentally involved tycoons, and these philanthropists are worth nearly £267 billion. Maybe thanks to Barack Obama's incitement measures, thirty five per cent of them are Americans. We notice that Warren Buffet and Bill Gates, probably the most famous tycoons in the world, are respectively first and second in investment in Wind power and renewable fuel. There are also many investors from the Silicon Valley, for example the Googlers Larry Page and Sergey Brin.
