A Biofuel Process to Replace All Fossil Fuels
A startup unveils a high-yield process for making fuel from carbon dioxide and sunlight.
By Kevin Bullis

The C02 may be free, along with the sunlight. What about the water, though? Where is that going to come from? And the nutrients? What is the source of nitrogen, for example? How does one prevent the microorganisms from reproducing too quickly? Are there any feedback loops that would inhibit production of biofuel, or worse kill the organisms?

But the new process, because of its high yields, could supply all of the country's transportation fuel from an area the size of the Texas panhandle.

Would production be centralized or spread out throughout the country?