Yahoo! is on a mission to find and reward America’s most eco-friendly city. Can your hometown claim that title? Join in now to help your city win a fleet of hybrid taxis, and get free compact fluorescent light bulbs (CFLs) for your efforts.
Complete any of the three activities shown on the right and get a free CFL bulb. And for every additional 500 credits you earn, we’ll send you another free CFL.
https://better.yahoo.com/planet/