Fancy putting a bit of the aquatic in your gas tank? Go to California. A new kind of biodiesel, containing 20-percent algae-based fuel, went on sale at gas stations in the San Francisco Bay area last week as part of a one-month pilot program. The fuel emits 10 percent fewer hydrocarbons, 30 percent fewer particulates, and 20 percent less carbon monoxide than other biodiesels according to its producer, Solazyme, reports Yale Environment 360. This is the first time that an algae-based fuel has made it into cars.