Approaches to remove CO2 from the atmosphere



BECCS as a negative emission technology is a multi-step hybrid method. In the first step, plants are grown to remove carbon dioxide from the atmosphere. As plants grow, they absorb CO2 from the air through photosynthesis. The plant matter is then used to produce electricity and during this process, the carbon dioxide that is emitted is captured before it is released back into the atmosphere. In the next step, the captured CO2 is processed for long-term storage. It can either be injected into geological formations deep into the ground, between 800m and 2500m, where the carbon reacts with minerals. The reaction process transforms carbon dioxide into rock and thus into a stable form.

The captured carbon can also be stored in long-lived products. For example, captured CO2 can be embedded into concrete that is used as a building material or be used to make carbon fibres. Using captured carbon in long-lived products is known as Carbon Capture, Utilization and Storage (CCUS).

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Support projects that use other methods with BECCS projects coming in the future and contribute to the removal of CO2 from the atmosphere.