Biodiesel from algae. The ultimate in renewable energy. Legacy Chiller Systems Knowledgebase article.
Pond Scum Fuel – By Marsha Walton, CNN:
Texas may be best known for “Big Oil.” But the oil that could some day make a dent in the country’s use of fossil fuels is small. Microscopic, in fact: algae. Literally and figuratively, this is green fuel.