Interesting news. When Richard Branson gets something into his head, he usually goes with it. From the BBC:

The Virgin boss said he would commit all profits from his travel firms, such as airline Virgin Atlantic and Virgin Trains, over the next 10 years. "We must rapidly wean ourselves off our dependence on coal and fossil fuels," Sir Richard said.

The funds will be invested in schemes to develop new renewable energy technologies, through an investment unit called Virgin Fuels.

...

Sir Richard, 56, said that transport and energy companies "must be at the forefront of developing environmentally friendly business strategies".

I have no doubt that Branson will put his money where his mouth is...

Wikipedia: Richard Branson »