In this clip from Associated Press, John Mone talks to California scientists about the future of bio fuel extracted from “pond scum”. Algae grow fast and take up little land, and some variants can even be grown in salt water. But how soon can we see commercially viable algae bio fuel on the market? One of the hurdles that must be overcome is how to get the oil out of the algae in a cost efficient manner. In the video, AP’s John Mone visits several different algae oil research facilities to take a closer look at the various methods available.