Geoengineering Info Profile picture
Apr 20, 2023 7 tweets 6 min read Read on X
🚨PAPER🚨

The newly published article focuses on the physical & chemical aspects of #CO2 #storage via liquid & solid chemical carriers & sorbents & gives an overview of the energetics around their use & options for their future development.
#CarbonRemoval
#CarbonStorage
🧵
1/7 ImageImage
Research pointed that "exciting opportunities for coupling #capture and medium to high maturity multi-year #storage technologies could support #CarbonRemoval in the coming decades."
2/7 Image
Highlights of the analysis are:
🔸"The remarkable #storage capacity of oxalic acid & formic acid (CO2-density of 1857 kg m−3 & 1152 kg m−3, compared with condensed liquid CO2 at 993–1096 kg m−3, respectively)."
3/7 ImageImage
Cont'd...
🔸"The relative scalability and compatibility of carbonate salts for stationary storage with #DirectAirCapture, and the potential promise of multiple carriers for CO2 transportation."
4/7 Image
So, results suggested that "solid sorbents do not achieve such ultra-high #storage capacities, but could improve storage over compressed gas tanks on a capacity and energetics basis."
5/7 Image

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More from @geoengineering1

Apr 9
🚨A recent study shows that bottom trawling & dredging not only harm marine ecosystems but also reduce the ocean's capacity to sequester CO₂. By disturbing the seafloor, these activities release an extra 2-8MtCO₂/yr, threatening the progress of current #CDR efforts.🧵1/10 Image
2/ The seafloor contributes to 40% of the ocean’s alkalinity, which plays a key role in the ocean’s capacity to sequester atmospheric CO₂. However, human activities like mobile bottom-contact fishing (e.g., trawling) and dredging are disturbing this natural carbon sink. Image
3/ Model simulations of this study revealed:

Bottom trawling alone reduces alkalinity production by around 130 [55–220] Gequiv/yr, while dredging contributes an additional 1.5 [0.8–2.7] Gequiv/yr. Combined, these activities lead to a net loss of 130 [56–220] Gequiv/yr. Image
Read 11 tweets
Apr 8
🚨🗓CDR REMINDERS!🗓🚨

Here's a list of what's coming up this week (08 April - 14 April 2025) in the field of #CarbonDioxideRemoval:

🔗🗓️Link to the CDR Events Calendar:


#CDREvents #CDRJobs #Deadlines

🧵1/13 teamup.com/kshqbfhrqkw36s…Image
EVENT—Scaling Enhanced Rock Weathering while Building Resilience for Farmers by Institute for Responsible Carbon Removal

🗓08 April 2025 | Online
🔗

2/13eventbrite.com/e/scaling-enha…
EVENT—This is CDR: Carbon Removal's Wrong Turn? A Conversation with @paulgambill by @openaircollect

🗓08 April 2025 | Online
🔗

3/13lu.ma/vkkba0ip
Read 14 tweets
Apr 6
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (31 March - 06 April 2025):

🔗:

🧵0/21
Frontier signed $31.6M offtake with Hafslund Celsio to remove 100,000 tons of CO₂ (2029–2030)—via the first-ever carbon removal retrofit of a waste-to-energy plant at Celsio’s Oslo facility.

1/21
frontierclimate.com/writing/hafslu…
Ecotrust Forest Management has signed a ten-year deal with Meta to deliver 676,000 tonnes of nature-based carbon removal credits through 2035.

2/21
esgtoday.com/meta-signs-ten…
Read 24 tweets
Apr 4
🚨 @UKRI_News & @NERCscience is investing £10 million in four NEW research projects, launching this month as part of a 5-year programme—Modelling Environmental Responses to Solar Radiation Management (#SRM)—to assess the risks, limitations & trade-offs of SRM.

DETAILS:🧵1/8 Image
2/ Project 1: Holistic Risk Assessment of SRM

Led by @imperialcollege, @BristolUni, @UniversityLeeds & @UniofExeter

The team will develop a new framework combining Earth system modelling with social & political analysis to better assess risks & trade-offs of SRM—especially #SAI
3/ Project 2:Marine CLOUD Brightening

Led by Uni of Exeter, Leeds, Reading, Manchester & Oxford

MACLOUD will model how spraying sea salt to brighten marine clouds could influence weather patterns, climate & ecosystems—looking closely at how cloud behavior changes at diff scales
Read 9 tweets
Apr 3
🚨🌋 A new UCLA-led study reveals surprising findings about the 2022 Hunga Tonga—Hunga Haʻapai underwater volcanic eruption. Despite fears it would push global temps past 1.5°C, it actually cooled the Southern Hemisphere by 0.1°C!

Here's why:🧵1/8
#SolarGeoengineering #Aerosols Image
2/ When Hunga Tonga erupted in January 2022, scientists expected the massive release of water vapor to trigger warming, but a key factor shifted: The eruption produced smaller sulfate aerosols that unexpectedly cooled the atmosphere!
3/ Traditionally, sulfate aerosols cool the Earth by reflecting sunlight, while water vapor warms it. The eruption's aerosols were 50% smaller than those from previous eruptions (like Pinatubo, 1991), which made them more efficient at cooling! Image
Read 9 tweets
Apr 1
🚨🗓CDR REMINDERS!🗓🚨

Here's a list of what's coming up this week (01 April - 07 April 2025) in the field of #CarbonDioxideRemoval:

🔗🗓️Link to the CDR Events Calendar:


#CDREvents #CDRJobs #Deadlines

🧵1/14 teamup.com/kshqbfhrqkw36s…Image
EVENT—What's moving in 2025: Actionable insights for an effective carbon credit strategy by @SylveraCarbon

🗓01 April 2025 | Online
🔗

2/14info.sylvera.com/webinar-whats-…
EVENT—Carbon Dioxide (CO2) Underground Storage: Technology, Uncertainties & Risks by Georgia Tech

🗓01 April 2025 | Online
🔗

3/14gatech.zoom.us/meeting/regist…
Read 17 tweets

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