In 2015 international oil company Shell will begin to capture more than one million metric tons of the odorless, colorless gas known as carbon dioxide. The CO2 will come from three enormous machines near Fort Saskatchewan, Alberta, that produce hydrogen to turn bitumen into salable oil. Once captured, the CO2 will be pumped through a pipeline to a site where it will be buried more than two kilometers underground in a porous sandstone formation. This carbon-capture-and-storage project, dubbed Quest , will be the first in the world run by the oil production industry--and join a short list of working demonstrations of a technology that may be vital if humanity is to avoid catastrophic climate change.