Question

Will 0.5 Gt of atmospheric CO2 be removed annually using enhanced rock weathering before 2040?

2 comments2

Total Forecasters12

Community Prediction

22%

(12% - 25%)

Make a Prediction

50%

community: 22%

Authors:

johnnycaffeine

Opened:

Jul 3, 2024

Closes:

Dec 30, 2039

Scheduled resolution:

Jun 30, 2040

Spot Scoring Time:

Jul 6, 2024

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Will a bio additive for accelerating mafic rock weathering by at least 30%, which enhances its CO2 sequestration, be available before 2030 and cost less than $20 per ton of rock?

10%

Cheap bio additive ↑ rock weathering 30%? → 0.5Gt CO2 removed by rock weathering by 2040?

When will direct air carbon capture tech cost <$50 (2020 USD) per ton of CO2?

2039

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