Internet users often use search engines, but have you ever wondered which of the two giant search engines is the greenest? Well, there is no clear answer but TechCrunch gives us a basic breakdown on greening the search engines:

Google:
They are also installing 1.6 megawatts of solar photovoltaic panels at their headquarters in Mountain View. The panels will cover the roofs of the buildings, and Google says it is “the largest solar installation on any corporate campus in the U.S.”

Yahoo:
Earlier this year, co-founder David Filo pledged that Yahoo would go carbon neutral, basically by purchasing carbon offsets for their massive electricity usage.