60 Minutes (again), Carbon Sequestration & Algae

60 Minutes tonight featured Duke's Jim Rogers (see my 7/4/08 post), and carbon sequestration:

I believe underground carbon sequestration is and probably always will be too expensive.

I'm more excited about the prospects for biological methods of sequestration. We can grow CO2 hungry algae that doubles as an energy-rich biofuel. A little like Soylent Green, but friendlier.