The X Prize Foundation is looking for great ideas from the general public. If you have an idea for saving the environment, or an idea for a good prize, you can submit those online. Tomorrow, leaders and thinkers from MIT will convene to discuss what areas are most prudent, and the X Prize Foundation will announce prizes to be awarded for your innovative ideas.

The X Prize Foundation isn't the only one trying to motivate the world to save itself. Richard Branson has the Virgin Earth Challenge, which will give $25 million to someone who can make a significant reduction in man-made greenhouse gas. The Department of Energy has the Freedom Prize, which will dedicate $4 million toward reducing dependence on foreign oil; and Scotland has the Saltire Prize, which offers nearly $18 million for developments in renewable marine energy.