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Greenhouse Gas Removal (GHG-R)

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GHG-R at the gigaton scale by 2050

To prevent global warming above 1.5 degrees as outlined in the Paris Agreement, we not only need to reduce greenhouse gas emissions, we need to proactively remove carbon from the atmosphere. Reaching this goal will require experts in policy, technology, nature-based solutions, and other areas working together globally.

Projects

In March 2024, the GHG-R Flagship selected its initial 16 projects spanning terrestrial, oceanic, direct GHG removal, and monitoring, removal, and verification (MRV) sub-categories. The projects are high-risk/high-reward approaches with a range of readiness from scoping to scale-up advancement. The projects embrace innovation and novel technologies for GHG-R at the gigaton scale.

Agroforestry as a scalable carbon removal technology

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Atmospheric methane removal using free radicals

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Bringing carbon to market: A case study of enhanced weathering

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Carbon dioxide removal materials: Integrated capture and permanent sequestration

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Comparative techno-economic analysis for emerging CDR technologies

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Developing robust frameworks and methods for monitoring, reporting, and verification of mCDR

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Efficient electrochemical CO2 capture enabled by pH-independent redox chemistry

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Farming for blue carbon: Assessing seaweed cultivation for CO2 removal

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Low-cost, low-power, and lightweight optical sensor package for widespread, scalable GHG MRV

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Ocean carbon capture — ocean de-acidification & carbonate mineralization

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Risk management framework for terrestrial nature-based climate solutions

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Scaling low-cost measurements of soil CO2 emissions

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Scoping reactive capture and conversion of nitrous oxide emissions

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Scoping: Old-growth relics as a model for forest restoration and natural climate solutions

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Terrestrial natural solution for GHG removal

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Trait mapping: Coalescing feedstock, conversion technologies, and durability to spread biochar

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