Yahoo goes green, free hybrid cabs for the winning city!

Yahoo launched two new sites to help people figure out what they can do to have less impact on the environment. The sites are also part of a contest to help the greenest city in the U.S. get greener. The winning city even gets their own hybrid taxi cabs.

The first of the new sites is Yahoo Green, which helps people create their own plans to go green using a drag and drop building tool.

The other new site is Be a Better Planet, which acts as a landing page for 18seconds, Yahoo Green, and links to green tools on Yahoo Answers and Yahoo's mobile search platform oneSearch.