Sarah Gardner
Reporter
Business
Driver Kyle Petty, his #45 car shown here at the 2004 NASCAR Nextel Cup Chevy Rock & Roll 400, says NASCAR's marketing horsepower might drive alternative fuels into the mainstream.
Jamie Squire, Getty Images
Sustainability
Protesters rally outside the Texas State Capitol.
David Burnstein, KUT
Business
A man in a business suit blows his nose.
Alberto Pizzoli, AFP/Getty Images