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
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
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
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
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
🚨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
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.
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.
📰 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.
🚨 @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
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
🚨🌋 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
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!