For those wondering about "using designer microbes to convert CO2 emissions into fuel", take a look at http://en.wikipedia.org/wiki/Algae_fuel http://en.wikiped

For those wondering about "using designer microbes to convert CO2 emissions into fuel", take a look at http://en.wikipedia.org/wiki/Algae_fuel http://en.wikipedia.org/wiki/Algae_fuel. Basically the algae takes in CO2 and then the algae itself is turned into fuel. Another method is where algae takes in CO2 and "exhales" fuel which removes the need to "kill" the algae. Very cool stuff. On a large enough, and efficient enough, scale this kind of technology could become highly important. These methods are somewhat carbon neutral since the CO2 emitted from using the fuel is recaptured by algae again.