New ideas for reducing CO2 seem to be popping up all the time. The latest scheme for getting rid of the greenhouse gas comes from Stanford Professor Brent Constanz. The Geological and Environmental Sciences Professor has invented a new type of cement that is carbon neutral—a huge innovation for a material whose production process normally spews vast amounts of CO2 into the atmosphere.
http://cleantechnica.com/2008/09/02/green-cement-is-carbon-neutral-sequesters-co2-from-power-plants/
I hope this is a sign of things to come!