Gumball 3000

If you've not heard of the Gumball 3000 before, it's fairly simple to explain. Blend hundreds of well-heeled supercar and sports car owners, a few thousand miles of roads, intersperse with fancy hotels and not-always-entirely-legal driving, and serve to the public. Given those ingredients, you'll forgive us a little skepticism over a press release telling us the Gumball has gone carbon-neutral for this year's event. Carbon neutrality is also fairly simple to explain, but a little harder to understand. As you know, driving a car means producing a certain quantity of carbon dioxide--from...