I vote that this is a scam.
It likely is, as it seems to be trying to take carbon dioxide straight from the air... rather than capping a brewery or somesuch.
In all likelyhood, the best 'alternative energy' source is biodiesel, considering that there is no modification to the engine (or current designs) needed to use it and that the algae-production method looked very promising last I heard about it.
But then again, maybe it's because it could work that I haven't heard about it in a few years.
Sure it’s a scam
It’s a scam to get tax dollars to develop a completely useless process.