Injecting CO2 Underground or Bonding it Into Cement: The Latest Climate Trends to Spark Debate

Climate change advocates argue the benefits of injecting CO2 deep underground, while one expert says regenerative farming is already solving the problem.

An aerial general view shows the concrete skyline of the east side of Manhattan towards Randalls Island, New York on Aug. 5, 2021. Ed Jones/AFP via Getty Images

Billions of metric tons of carbon dioxide are stored in the Earth’s rocks, but some climate change advocates want to add more. A lot more.

Carbon storage via underground injection wells has been operational for decades, but supporters of carbon sequestration also want to store CO2 in cement via pulverized rock.