Everyone wants to save the earth but some creative thinkers are trying harder than the rest of us. Here are some of our favorites from the 50 entries in the 2009 Greener Gadgets Design Competition, which was sponsored by the Consumer Electronics Association, the parent organization of the the giant annual gadgetathon known as the Consumer Electronics Show, as well as design resource site Core77, among others.

Some of the designs are useful, some more fanciful, but every one has Mother Earth and your energy bills at heart. The list of winners will be available on the Greener Gadgets site starting on March 2. Note: None of these products are yet on the market.

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