News Makers: Sheryl Crow's uneasy rider

Sheryl Crow's rider demands for her Stop Global Warming College Tour included four buses, six cars and three tractor trailers for her staff.

The singer - who traveled on a bio-diesel bus for two weeks during the tour - is said to have made the environmentally unfriendly request to ensure her staff were comfortable.

But the pollution-heavy demands came in the wake of her urging people to reduce carbon emissions.