Can coal (or its byproducts) ever be Green?
I’m still not convinced that, no matter the virtues of algae-based biofuels (which certainly do exist), plans like these will ultimately just not result in burning more coal. We can feel a bit better that more energy is produced for a given amount of coal burned, but that’s about it. With coal in the equation to grow the algae I don’t think this can truly be considered a green fuel. It may be a step in the right direction, but a half step at best.