Carbon capture and storage. It’s a controversial tool in the energy transition that we don’t want to use, but probably have to. Most of the scenarios in the IPCC’s Sixth Assessment Report include capturing and storing hundreds of gigatons of carbon dioxide between now and 2100. 
When people say carbon capture and storage, or CCS, they often mean different things. It’s a term that covers multiple technologies used to capture CO2—such as point-source and direct-air capture— and different approaches to using that CO2. 
With the CCS industry is in its infancy, tackling some big questions now could save us headaches down the road. Questions about CCS infrastructure use, where we’ll build it, and who will control it.
In this episode, Shayle talks to Dr. Emily Grubert, associate professor of sustainable energy policy at the University of Notre Dame. She posted a Twitter thread recently about how the same CCS infrastructure actually has four different use cases:

Avoiding emissions to extend the life of fossil-fuel infrastructure

Avoiding emissions where we don’t have zero-carbon alternatives yet, like cement production

Removing carbon to compensate for other emissions, i.e. offsets

Removing carbon to draw down legacy emissions and avoid overshooting 1.5 degrees Celsius targets


They walk through each categories and cover topics like:

Which categories to prioritize over others

Avoiding the double-counting problem

Where we should use CCS vs. zero-carbon alternatives

The resource constraints on CCS, including water, land and energy

Whether we have the luxury to prioritize when we need to deploy CCS so quickly

Whether CCS customers or regulatory bodies should determine the type of CCS infrastructure we have and where we build it


Recommended Resources:


Catalyst: Carbon capture and storage is making a comeback


Bloomberg: Big Money Rushes Into Carbon Capture. Can It Deliver This Time?


US DOE: Strategic Vision: The Role of FECM in Achieving Net-Zero Greenhouse Gas Emissions


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