๐จNEW study explored a system that combines enhanced olivine weathering (EOW) with increased C fixation by diatoms.
EOW can boost ocean's ability to sequester DIC while stimulating diatom growth, which in turn would fix more C & reinforce biological C pump processes. #CDR
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In this study, researchers investigated the short-term synergistic CO2 removal effects of an olivineโdiatom coculture system & found that:
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1๏ธโฃ "Over a 6-day incubation period, the olivine dissolution was 92%โ144% higher in the olivineโdiatom groups compared with the olivine-only groups."
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2๏ธโฃ "The olivine-only groups achieved a #CDR efficiency of 5.15%โ5.49% while the olivineโdiatom groups achieved a CDR efficiency of 8.84%โ14.44%."
In particular, diatoms in direct contact with olivine showed more pronounced CDR effects than diatoms in indirect contact.
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3๏ธโฃ "Adding olivine was found to increase the total alkalinity by 70โ100 ยตmol Lโ 1 and the diatom abundance by 26.4%โ58.4%."
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4๏ธโฃ "Diatom growth and the fixed carbon content were greatly enhanced, particularly during the later silicate-depleted stage when the Si: C ratio significantly exceeded that of groups without olivine."
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"The olivineโdiatom coculture system boosts CO2 removal efficiency and offers an effective carbon sequestration strategy for combating climate change," study concludes.
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Read the study entitled "Synergistic CO2 removal via enhanced olivine weathering and diatom growth in the ocean" here:
๐ฐ Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (๐ฌ๐ฒ ๐ ๐ฎ๐ - ๐ญ๐ฎ ๐ ๐ฎ๐ ๐ฎ๐ฌ๐ฎ๐ฐ)
๐:
#CarbonDioxideRemoval
#CDR
๐งต0/17
@SthlmExergi signed a contract with @Microsoft covering 3.33M tonnes of permanent CDRs over 10 years from BECCS plant at Vรคrtan, Stockholm. "The agreement represents the world's largest permanent removals deal to date."
The Midwest Nuclear DAC Hub (MINDAC) โ one of the 19 #DirectAirCapture projects announced for award negotiations by @ENERGY, received the $4 million investment by the DOE.
๐จ๐ @Veolia, the UKโs leading resource management firm, has partnered with UK biotechnology startup, @fabricnano, to apply enzymes to rocks to trial faster, permanent #CarbonRemoval directly from the atmosphere.
#EnhancedRockWeathering
โWith this world-first trial pairing biology with geology to accelerate rock weathering for carbon sequestration, @Veolia aims to reduce the energy consumption, emissions and timescales for carbon removal by utilizing enzymes to accelerate the natural weathering process.โ
2/9
โ@fabricnanoโs patented technology immobilizes the Carbonic Anhydrase enzyme directly onto large particle basalt, accelerating carbon sequestration timelines from decades to just a couple of years.โ
๐ฐ Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (๐ฎ๐ต ๐๐ฝ๐ฟ๐ถ๐น - ๐ฌ๐ฑ ๐ ๐ฎ๐ ๐ฎ๐ฌ๐ฎ๐ฐ)
๐:
#CarbonDioxideRemoval
#CDR
๐งต0/22
Frontier has signed a deal worth $58.3 million with @VaultedDeep to purchase 152,480 tons of carbon removal by 2027, including ~18.3K by the end of this year.
"This is the largest Biomass Carbon Removal and Storage (BiCRS) deal till date."
enfinium, a leading UK energy from waste operator, is committed to delivering 1.2 million tons of carbon dioxide removals annually by 2039, according to its Net Zero Transition Plan worth ยฃ1.7B.
๐ฐ Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (๐ฎ๐ฎ ๐๐ฝ๐ฟ๐ถ๐น - ๐ฎ๐ด ๐๐ฝ๐ฟ๐ถ๐น ๐ฎ๐ฌ๐ฎ๐ฐ)
๐:
#CarbonDioxideRemoval
#CDR
๐งต0/24
The Canadian arm of UK insurance group @avivaplc has pledged nearly CAD6 million to non-profit Nature Conservancy of Canada (NCC) to support nature-based restoration, conservation and carbon removal projects in the North American country.
@VaultedDeep, a BiCRS firm, delivered a total of over 1,666 @Isometric_HQ CDR credits to Frontiers buyersโStripe has received 1,437 C credits, while Shopify got 229 sourced from Vaulted Deep's Great Plains Organic Waste Sequestration project in US.
The research indicates that "a single hurricane in New England, one of the most heavily forested regions in the US, can down 4.6โ9.4% of the total above-ground forest carbon, an amount much greater than the carbon sequestered by New England's forests per year."
2/8
To estimate how long it would take for the forest C to be emitted from the downed trees due to given hurricane, researchers took into account wood decay rates & estimated the timber products that could be made from the salvaged wood based on regional timber product reports.
3/8
๐ฐ Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (๐๐ ๐๐ฉ๐ซ๐ข๐ฅ - ๐๐ ๐๐ฉ๐ซ๐ข๐ฅ ๐๐๐๐)
๐:
#CarbonDioxideRemoval
#CDR
๐งต0/21
The European Commission announced a $30M call for proposals to provide funding for CDR projects.
The amount is part of a broader $66M package from the Programme for Env & Climate Action (LIFE) and is aimed at techs like biochar, BECCS & ERW.
@FECMgov announced five finalists to receive a total of $1.5M for developing commercialization programs that support technologies to remove CO2 directly from the atm.
Finalist teams include:
@activatefellows @airminers @gener8tor @oxicool @Newlab