I ran across this article for a new alternate fuel energy source this morning. Pretty cool stuff, it will be interesting to see if can scale to an industrial level.
Just under a year ago, startup Joule Biotechnologies announced it had engineered microbes that require only sunlight and CO2 to squirt out ethanol, diesel, or other hydrocarbons. On Tuesday, Joule revealed the details of that secretive microbe in the first patent for an organism that generates hydrocarbon fuel directly from sunlight.