Home Virtual Teen Science Cafe: Oceans & Climate During this Virtual Teen Science Cafe, Alexandria Niebergall will be talking generally about the role that the ocean plays in... Teen Science Cafe | Back to the Geosphere: Impacts of CO2 Sequestration Underground Geological carbon sequestration involves capturing atmospheric CO2, condensing it into liquid form, and pumping it into deep underground aquifers. Scientists... Teen Science Cafe Recap: How do you put CO2 back in the ground? Blog Read a recap of our last Teen Science Cafe, written by high-school student and Teen Advisory Board Member, Violet.