study and develop technologies to enable the continued burning of fossil fuels in Illinois and around the world. Concerns have been raised about the emission of carbon dioxide when oil, gas, coal, and other fuels are burned, but geologists have long known that it is possible to gather carbon dioxide generated by fixed sources of energy (such as power plants) and inject them deep into the earth. The technology, called carbon “sequestration,” could be used to make it more attractive to burn coal and other fossil fuels for future energy.
The Illinois State Geological Survey has been asked to evaluate the feasibility of injecting more than 50 million metric tons of CO² into geological strata deep under Illinois. The study will build on previous core drillings and other empirical research that shows that much of central and southern Illinois lies on top of beds of impermeable shale. Hypothetically, carbon dioxide could be injected into or beneath the shale and would never come back to the earth’s surface.