Google.org, the search engine giant's bid to save the world, said Wednesday it started requesting investment proposals "to the tune of $10 million" on sustainable transportation solutions.

The money might sound like small peanuts for such a big challenge - barely enough to buy the original version of the Dukes of Hazzard's gas-guzzling General Lee. But Google thinks it will help prod people to work on interesting ideas to help come up with a transportation solution that's more environmentally friendly than our current fossil-fuel-based model.

"While $10 million is a fraction of the total investment needed to transform our transportation sector, we hope this RFP will help catalyze a broader response," said a note in google.org's blog.

The proposals, of no more than five pages, should help advance the commercialization of plug-in hybrid cars, electric vehicles, or vehicle-to-grid solutions, the company said.