I was just browsing through make, and tumbled upon this really cool idea - motorway wind turbines. It can reduce the carbon footprint of the automobile. And some electricity. And less auxiliary weather meddling. The wind created by by the stream of cars on the motorway and it's effects on the local weather and the one in China are still not studied, regardless of the advances of chaos theory and other intellectual beauties.

Driving at 90mph - get bladed? Can be really good for "drive safe" campaigners.

update:hmm, there a discussion on slashdot about the same core idea, thanks dogsbody, my festive friend.