The demand for energy around the world continues to grow each year. And so does the amount of carbon dioxide that's pumped into the earth's atmosphere. What happens if the world fails to bring down CO2 emissions in the coming decades? What if all the treaties and negotiations over climate change don't succeed in reducing the threat of global warming?Our guest is Peter Kelemen, Chair of Columbia University's Earth and Environmental Sciences Department and Arthur B. Storke Professor of Geochemistry. Last year, Peter was inducted into the National Academy of Sciences. His research on carbon capture and storage may offer one exciting solution to a global crisis. Our show looks at a tool that could fight climate change by taking carbon dioxide and literally locking it up in the earth's crust, right under our feet. Geology research could be used to find new ways to suck up carbon and keep it out of the atmosphere, harnessing a natural process and using some of the fracking techniques now common in oil and gas drilling. We look at the costs as well as the potential offered by this form of breakthrough scientific research.

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