Have a creative idea about how Yahoo! should go carbon neutral? Well, submit it to the Yahoo! Answers blog and perhaps your suggestion of setting up wind turbines at the company's various office locations in the U.S. will be selected by founders David Filo and Jerry Yang as they embark on the quest to make their multibillion-dollar search engine company 100% carbon neutral by the end of 2007.

"We know carbon neutrality isn't without controversy. And it's honestly deserved if companies and individuals don't first make an effort to find direct ways to reduce their impact. We'll continue to be vigilant about cutting ours, looking for creative ways to power our facilities, encourage even more employees to seek alternative commutes, and generally inspire Yahoos around the world to think differently about their energy use." -- David Filo, Yahoo!, Founder