This just in. From my BBC RSS feed it was announced that the UK billionaire Sir Richard Branson would donate all profits from his Virgin Atlantic and Virgin Trains to renewable energy development. This is a very interesting pledge considering that train travel in the UK and air travel between Britain and the US are huge contributors to greenhouse gases - a majority of which is caused by the burning of coal and jet fuel (oil) respectively.

Today, Bill Lockyer, attorney general of California announced the state is suing 6 carmakers over their contributions to greenhouse gases. The lawsuit says, “Right now, global warming is harming California.” Lockyer said, “Global warming is causing significant harm to California’s environment, economy, agriculture and public health.”

How might these two events be related?