Climate change; is it fact or fiction. Is it man-made or a natural phenomenon? Be a part of the research while you sleep! By using an otherwise idling PC and joining a distributed network dedicated to climate change, you can use your home PC in a small way to help unlock the puzzles surrounding the climate change debate.
One such distributed networks dedicated to climate change research is http://climateprediction.net. This is a project sponsored by Oxford University with the stated goal of predicting the climate of the 21st century using distributed networking.