Company uses carbon dioxide emitted from smokestacks to make baking soda The system will be powered by waste heat from factories The soda can be sold for home or industrial use or buried harmlessly in landfills Jones apparently got the idea for the SkyMine system while watching a Discovery Channel show with his kids. He pulled out an old college science textbook and immediately turned to a passage about converting C02 to baking soda. He'd found it interesting years ago and highlighted it for future reference http://www.cnn.com/2007/TECH/science/11/29/climate.change.soda/index.html