Carbon capture and sequestration, refers to technology attempting to prevent release of large quantities of CO2 into the atmosphere. The process is based on capturing carbon dioxide (CO2) from large point sources and storing it where it will not enter the atmosphere. One of these methods is to inject it into the ground. Geologists are hoping to learn a great deal about geologic carbon sequestration from injecting 1 million metric tons of carbon dioxide into sandstone 7,000 feet beneath Decatur, Ill. The Illinois Basin – Decatur Project began its injection, the first million-ton demonstration from an industrial source in the U.S., in November 2011. Over the next three years, the Midwest Geological Sequestration Consortium, led by the Illinois State Geological Survey, hopes to use innovative science and engaging outreach to evaluate the potential of carbon capture and storage techniques.