Texas company Valcent Products has a plan for a renewable-energy future: grow algae, then extract its oil -- up to 50% of the pond scum's weight -- to create biodiesel. They've turned $5 million in investment money into a vertical "pond" called the Vertigrow Lab to learn how to grow the green stuff more effectively -- and determine which variants work best for producing fuel for automobiles, aircraft, etc.
It looks like algae-powered buses are still a ways off, but possibly in our future. Maybe they're in Galactica's future, too. Just think: algae-powered Raptors mean more tyllium for the fleet.