
The Carbon Curve
Digging deep on carbon storage
Episode guests
Podcast summary created with Snipd AI
Quick takeaways
- Geologic storage offers a vast capacity for securely and permanently storing carbon dioxide underground, helping achieve carbon removal and climate goals.
- Regulatory permitting processes and financial viability are key challenges to the widespread implementation of geologic storage for carbon dioxide.
Deep dives
Geologic Storage of Carbon Dioxide
Geologic storage, or geologic carbon storage, refers to the process of securely and permanently storing carbon dioxide (CO2) underground. This is achieved by injecting CO2 into deep underground geological formations such as sedimentary basins, saline aquifers, oil and gas reservoirs, and coal seams. The injected CO2 can exist in a supercritical or dissolved state underground, trapped in porous and permeable rocks. The concept of storing CO2 geologically is crucial for achieving carbon removal and meeting climate goals as it reverses the process of extracting carbon from the earth via fossil fuels and releasing it into the atmosphere, preventing it from further contributing to climate change. The capacity for geologic storage is vast, with estimates ranging from thousands to trillions of tons globally, including potential capacity in the United States alone. Primacy, which grants states regulatory authority over geologic storage, is important for streamlining the permitting process and facilitating faster, localized implementation.