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Geoengineering Info Profile picture
@geoengineering1
May 7 โ€ข 15 tweets โ€ข 11 min read Twitter logo Read on Twitter
โœ๏ธ ๐–๐ž๐ž๐ค๐ฅ๐ฒ ๐‡๐ข๐ ๐ก๐ฅ๐ข๐ ๐ก๐ญ๐ฌ โœ๏ธ

Top #CarbonDioxideRemoval News /Scientific papers from the past week covered in a ๐Ÿงตbelow: โฌ‡๏ธ
๐ŸŒฑ๐ŸŽ›๏ธ๐Ÿชจ๐ŸŒŠ

1/15 Image
1๏ธโƒฃ ๐ŸŒŠ"Dalhousie receives historic $154โ€‘million investment to study the oceanโ€™s pivotal role in climate change. The ๐ฅ๐š๐ซ๐ ๐ž๐ฌ๐ญ ๐ซ๐ž๐ฌ๐ž๐š๐ซ๐œ๐ก ๐ ๐ซ๐š๐ง๐ญ in Dalhousie history"!
@planetary_tech

#OceanAlkalinityEnhancement

โžก๏ธ

2/15
2๏ธโƒฃ ๐Ÿšœ๐ŸŒพ"The Carbon Business Council (@CO2Council) released a policy brief on #CarbonRemoval and the #2023FarmBill."

โžก๏ธ

3/15
3๏ธโƒฃ๐ŸŒฑ๐Ÿšœ"@FastCompany, the progressive business media brand, has announced #EnhancedRockWeathering firm @LithosCarbon the winner of this year's General Excellence Award, as part of their annual World Changing Ideas campaign."

โžก๏ธ

4/15
4๏ธโƒฃ๐Ÿ’ฐFrontier, a climate fund, had announced the start of its 2023 #CarbonRemoval prepurchase cycle, with a pre-application deadline of May 19, 2023.

โžก๏ธ

5/15
5๏ธโƒฃ "Stanfordโ€™s sustainability school chose #GreenhouseGasRemoval after input from fossil-fuel executives. Critics say the industryโ€™s involvement is cause for concern."

โžก๏ธ

6/15
6๏ธโƒฃ ๐ŸŒณ๐ŸŒฒ"#CarbonSequestration in forest ecosystems is key to mitigating climate change, so new paper examines carbon rotation ages that consider commercial timber and carbon values."

๐Ÿ”Š๐ŸŽ™๏ธโžก๏ธ

๐Ÿ“๐Ÿ“–โžก๏ธ

7/15
7๏ธโƒฃโœ๏ธ Researchers "proposed a graphical approach that has a potential to be used as a planning tool to #decarbonize the energy sector involving interdependent energy sources & #NegativeEmissionTechnologies."

๐Ÿ“๐Ÿ“–โžก๏ธ

8/15
8๏ธโƒฃ ๐ŸŒŠNew paper "presents a rigorous analysis of #๐ธ๐‘ž๐‘ข๐‘Ž๐‘ก๐‘–๐‘, an ocean-mediated process for #CarbonDioxideRemoval, examining two limiting pathways."

๐Ÿ”Š๐ŸŽ™๏ธโžก๏ธ

๐Ÿ“๐Ÿ“–โžก๏ธ

9/15
9๏ธโƒฃ๐ŸŒฒA study based in China assessed "the spatial-temporal #CSR/ area for #Afforestation & #Reforestation at the regional, prefecture & county levels using a forest #CarbonSequestration model under 3 climate scenarios."

๐Ÿ”Š๐ŸŽ™๏ธโžก๏ธ

๐Ÿ“๐Ÿ“–โžก๏ธ
๐Ÿ”Ÿ๐Ÿ“œ"Improved land management, more aggressive #CarbonEmissionsReduction & #CDR will be needed to reach time flagged carbon neutrality targets after considering the adjustment in the terrestrial #CarbonSink, a new study justified."

๐Ÿ“๐Ÿ“–โžก๏ธ

11/15
1๏ธโƒฃ1๏ธโƒฃโœ๏ธ Delft University of Technology's recently released thesis focuses on "the design & development of a #DirectAirCapture model in Python using Lewatit VP OC 1065 as the #AmineBasedSorbent." ๐ŸŽ›๏ธ

๐Ÿ“๐Ÿ“–โžก๏ธ

12/15
1๏ธโƒฃ2๏ธโƒฃโœ…Researchers proposed a model to assess "the viability of #CarbonDioxideStorage in offshore formations of the Gulf of Mexico at a scale relevant for climate-change mitigation."

๐Ÿ”Š๐ŸŽ™๏ธโžก๏ธ

๐Ÿ“๐Ÿ“–โžก๏ธ

13/15
1๏ธโƒฃ3๏ธโƒฃ โœ๏ธ Study funded by German Ministry for Education & Research explored "various factors that impact the volume of #CDR in pathways, such as discount rates, C price trajectories, & scenario design choices."

๐Ÿ”Š๐ŸŽ™๏ธโžก๏ธ

๐Ÿ“๐Ÿ“–โžก๏ธ

14/15
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More from @geoengineering1

Geoengineering Info Profile picture
May 9
๐Ÿšจ๐ŸŒŠNEW PAPER ๐ŸŒŠ๐Ÿšจ

"One of the planetโ€™s most vital #CarbonSinks i.e. SOUTHERN OCEAN (SO) (absorbs ~40% of C) is revealing its secrets as tiny organisms in the SO play an outsized role in moderating Earthโ€™s #climate."

Details from the recent research are discussed in a๐Ÿงตโฌ‡๏ธ
1/8 Image
"Based on 107 independent observations of the seasonal cycle from 63 #biogeochemical profiling floats, new study conducted by scientists from #NOAA & University of Hawai'i provide the basin-scale estimate of distinct biogenic #CarbonPool production at Southern Ocean."
2/8 Image
Researchers find "significant meridional variability with enhanced #ParticulateOrganicCarbon production in the subantarctic & polar Antarctic sectors & enhanced #DissolvedOrganicCarbon production in the subtropical & sea-ice-dominated sectors."
3/8 Image
Read 8 tweets
Geoengineering Info Profile picture
May 9
๐Ÿšจ๐ŸŒŠNEW PAPER ๐ŸŒŠ๐Ÿšจ

"One of the planetโ€™s most vital #CarbonSinks i.e. SOUTHERN OCEAN (SO) (absorbs ~40% of C) is revealing its secrets as tiny organisms in the SO play an outsized role in moderating Earthโ€™s #climate."

Details from the recent research are discussed in a๐Ÿงตโฌ‡๏ธ
1/8 Image
"Based on 107 independent observations of the seasonal cycle from 63 #biogeochemical profiling floats, new study conducted by scientists from #NOAA & University of Hawai'i provide the basin-scale estimate of distinct biogenic #CarbonPool production at Southern Ocean."
2/8 Image
Researchers find "significant meridional variability with enhanced #ParticulateOrganicCarbon production in the subantarctic & polar Antarctic sectors & enhanced #DissolvedOrganicCarbon production in the subtropical & sea-ice-dominated sectors."
3/8 Image
Read 4 tweets
Geoengineering Info Profile picture
May 8
๐ŸšจNEW STUDY๐Ÿšจ
"Six models are used in a recent study to analyze the climatic, environmental & socio-economic consequences of #overshooting a C budget consistent with the 1.5ยฐC temp target along the cause-effect chain from emissions & #CarbonRemovals to climate risks & impact."
๐Ÿงต Image
"Global climatic indicators such as CO2-concentration and mean temperature closely follow the #CarbonBudget #overshoot with mid-century peaks of 50 ppmv and 0.35ยฐC, respectively."
2/10
Findings of this study highlight that "investigating #overshoot scenarios requires temporally and spatially differentiated analysis of climate, environmental and socioeconomic systems."
3/10
Read 10 tweets
Geoengineering Info Profile picture
May 7
๐ŸšจNEW STUDY๐Ÿšจ

๐ŸŒฒ"#Sequestering C in forest ecosystems is important for mitigating #ClimateChange."

โœ๏ธ"Policy concern: whether forests should be left unharvested to reduce CO2 #emissions & store C, or harvested to take advantage of potential #CarbonStorage & #removal."

๐Ÿงต1/8 ImageImage
So, new study addressed this issue "by examining C rotation ages that consider commercial timber and C values. A discrete-time optimal rotation age model is developed that uses data on C #fluxes stored in living & dead biomass as opposed to C as a function of timber growth."
2/8 Image
"Carbon is allocated to several ecosystem and post-harvest product pools that decay over time at different rates. In addition, the timing of #CarbonFluxes is taken into account by weighting future carbon fluxes as less important than current ones."
3/8 Image
Read 8 tweets
Geoengineering Info Profile picture
May 6
๐ŸšจNEW STUDY๐Ÿšจ

๐ŸŒŠRecent study "presents the mass balances linked with #CarbonDioxideRemoval using seawater as both the source of reactants & as the reaction medium via electrolysis following the โ€œEquaticโ€ (formerly known as โ€œSeaChangeโ€) process."

๐ŸŒŠDetails in a ๐Ÿงต below โฌ‡๏ธ
1/12 Image
"The #Equatic process, broadly detailed in (pubs.acs.org/doi/full/10.10โ€ฆ), involves the application of an electric overpotential that splits H2O to form H+ & OHโ€“ ions, producing #acidity & #alkalinity, i.e., in addition to gaseous coproducts at the anode & cathode, respectively."
2/12 Image
"The #alkalinity that results, i.e., via the steady electrolytic pH pump results in the rapid precipitation of CaCO3, hydrated magnesium #carbonates (e.g., nesquehonite & hydromagnesite, etc.) or Mg(OH)2 depending on the carbonate ion-activity in solution."
3/12 Image
Read 12 tweets
Geoengineering Info Profile picture
May 5
๐ŸšจNEW STUDY๐Ÿšจ

"#Afforestation & #reforestation are worthwhile solutions for C sequestration, but lack of hierarchical spatial-temporal maps for national scale #CarbonSequestrationRate hinders scientific implementation."

In this regard, a new study is published, details โฌ‡๏ธ
1/8๐Ÿงต Image
๐ŸŒฒResearchers assessed "the spatial-temporal #CarbonSequestrationRate (CSR) per area for #Afforestation & #Reforestation at the provincial, prefectural, and county levels in China using a forest carbon sequestration model under three climate scenarios."
2/8
๐ŸŒณ๐ŸŒฑResults showed that "the #CSR of vegetation (CSRVeg), soil (CSRSoil), and the ecosystem (CSREco) significantly varied across space and time. In China, the CSRVeg, CSRSoil, and CSREco were primarily regulated by the spatial variations in temperature and precipitation."
3/8
Read 8 tweets

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