Rayna McClintock
@raynamcc.bsky.social
biological oceanography phd student at UH Mānoa. focused on ocean alkalinity enhancement, carbon, and coral.
should we dump a bunch of rocks in the ocean?...hoping to know more soon
should we dump a bunch of rocks in the ocean?...hoping to know more soon
Reposted by Rayna McClintock
Study finds that enhanced weathering on farmlands could sequester up to 0.49 GtCO2/yr by 2070, with costs dropping to $100–150/tCO2 by 2050. Promising, but not a silver bullet—scaling challenges, equity concerns, monitoring & verification gaps remain & research on environmental impacts needed.
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Nature research paper: Transforming US agriculture for carbon removal with enhanced weathering
https://go.nature.com/3WQF5ma
https://go.nature.com/3WQF5ma
Transforming US agriculture for carbon removal with enhanced weathering - Nature
A state-level analysis of the impact of enhanced weathering deployment on carbon sequestration on agricultural land suggests that enhanced weathering could help the USA meet net-zero 2050 goals.
go.nature.com
February 6, 2025 at 2:27 PM
Study finds that enhanced weathering on farmlands could sequester up to 0.49 GtCO2/yr by 2070, with costs dropping to $100–150/tCO2 by 2050. Promising, but not a silver bullet—scaling challenges, equity concerns, monitoring & verification gaps remain & research on environmental impacts needed.
🧪🌏🌱
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Reposted by Rayna McClintock
Alex Milde approached me last year with his idea how Ocean Alkalinity Enhancement via coastal enhanced weathering could be measured, reported and verified. He tested this idea in our labs at IMAS and the results are really promising. (preprint below)
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www.authorea.com/doi/full/10....
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www.authorea.com/doi/full/10....
A new approach for measurement, reporting, and verification of ocean alkalinity enhancement via coastal enhanced weathering
Coastal Enhanced Weathering (CEW) is a marine Carbon Dioxide Removal (CDR) method that adds ground alkaline minerals to shallow regions of the ocean in order to increase seawater alkalinity, i.e., its...
www.authorea.com
October 17, 2024 at 10:28 PM
Alex Milde approached me last year with his idea how Ocean Alkalinity Enhancement via coastal enhanced weathering could be measured, reported and verified. He tested this idea in our labs at IMAS and the results are really promising. (preprint below)
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www.authorea.com/doi/full/10....
🌊
www.authorea.com/doi/full/10....
Reposted by Rayna McClintock
Climate change is going to kill many marine species. Do we deploy marine CO₂ removal (mCDR) even though the deployments will negatively affect a small number of species?
March 27, 2024 at 10:02 AM
Climate change is going to kill many marine species. Do we deploy marine CO₂ removal (mCDR) even though the deployments will negatively affect a small number of species?
How do we make sure the volunteer carbon market doesn't end up with the same conflict of interest as environmental impact assessment statements???
Company: I will pay you to say I am doing good things
Assessor: Okay!
Company: I will pay you to say I am doing good things
Assessor: Okay!
“The data suggests that voluntary carbon markets are currently flooded with cheap, low-quality offsets, likely due to a lack of integrity guidelines and regulations for voluntary carbon markets to ensure the transparency and authenticity of offset projects.”
Companies are buying up cheap carbon offsets − data suggest it’s more about greenwashing than helping the climate
A deep dive into 866 public companies and 1,413 carbon projects reveals some twists in who relies on cheap offsets and who chooses to cut their own emissions instead.
theconversation.com
November 13, 2024 at 12:17 AM
How do we make sure the volunteer carbon market doesn't end up with the same conflict of interest as environmental impact assessment statements???
Company: I will pay you to say I am doing good things
Assessor: Okay!
Company: I will pay you to say I am doing good things
Assessor: Okay!
Reposted by Rayna McClintock
How does ocean alkalinity enhancement affect marine life? Researchers are investigating this question in a multi-week experiment led by GEOMAR in the Kiel Fjord as part of the international project Ocean Alk-Align. www.geomar.de/en/news/arti...
The ocean as ally in climate protection: How does ocean alkalinity enhancement affect marine life?
19.02.2024/Kiel. In a multi-week experiment starting today, scientists led by GEOMAR Helmholtz Centre for Ocean Research Kiel investigate if the addition of rock powder is able to help the ocean absor...
www.geomar.de
February 20, 2024 at 9:29 AM
How does ocean alkalinity enhancement affect marine life? Researchers are investigating this question in a multi-week experiment led by GEOMAR in the Kiel Fjord as part of the international project Ocean Alk-Align. www.geomar.de/en/news/arti...
This could have been such great news... too bad these committees will get disbanded in January
The US is pushing forward on marine carbon dioxide removal. Let’s hope regulation can keep up:
-White House Forms Committee On mCDR - carbonherald.com/white-house-...
-mCDR Fast Track Action Committee - www.noaa.gov/sites/defaul...
$24.3m mCDR investment oceanacidification.noaa.gov/focus_areas/...
-White House Forms Committee On mCDR - carbonherald.com/white-house-...
-mCDR Fast Track Action Committee - www.noaa.gov/sites/defaul...
$24.3m mCDR investment oceanacidification.noaa.gov/focus_areas/...
White House Forms Committee On Marine Carbon Removal
The White House Office of Science and Technology Policy (OSTP) has formed a new Fast-Track Action Committee on Marine Carbon Dioxide Removal.
carbonherald.com
November 12, 2024 at 11:12 PM
This could have been such great news... too bad these committees will get disbanded in January
New to BlueSky! Excited to mass follow everyone in the climate, mCDR, OAE space!!!
November 12, 2024 at 10:59 PM
New to BlueSky! Excited to mass follow everyone in the climate, mCDR, OAE space!!!