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May 5 8 tweets 5 min read Twitter logo Read on Twitter
🚨NEW STUDY🚨

"#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 ⬇️
1/8🧵 Image
🌲Researchers 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
🌳🌱Results 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
🌾🌱Additionally, "CSRVeg was found to be positively influenced by precipitation and temperature, whereas temperature had a negative influence on CSRSoil."
4/8
Authors suggested that "these info on the spatiotemporal variation of #CSR of A&R (vegetation, soil, & ecosystem) on unit A basis & at levels of province, prefecture, & county in China, can be used as a comparable protocol to assess the #CarbonSinks of A&R at various scales."
5/8
🌲🌳"Overall, these hierarchical spatiotemporal maps for #CSR on A&R may help to identify priority areas of forest management planning and carbon trade policy to achieve faster #CarbonNeutrality for #China in the future," study concluded.
6/8
🌱🌲Read the paper entitled: "Spatial-temporal variation of the carbon sequestration rate of afforestation in China: Implications for carbon trade and planning" here ⬇️
sciencedirect.com/science/articl…

#CarbonSequestration
#Afforestation
#Reforestation

7/8 Image

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More from @geoengineering1

May 7
✍️ 𝐖𝐞𝐞𝐤𝐥𝐲 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬 ✍️

Top #CarbonDioxideRemoval News /Scientific papers from the past week covered in a 🧵below: ⬇️
🌱🎛️🪨🌊

1/15 Image
1️⃣ 🌊"Dalhousie receives historic $154‑million investment to study the ocean’s pivotal role in climate change. The 𝐥𝐚𝐫𝐠𝐞𝐬𝐭 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐠𝐫𝐚𝐧𝐭 in Dalhousie history"!
@planetary_tech

#OceanAlkalinityEnhancement

➡️

2/15
2️⃣ 🚜🌾"The Carbon Business Council (@CO2Council) released a policy brief on #CarbonRemoval and the #2023FarmBill."

➡️

3/15
Read 15 tweets
May 7
🚨NEW STUDY🚨

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

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

🧵1/8 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
May 6
🚨NEW STUDY🚨

🌊Recent study "presents the mass balances linked with #CarbonDioxideRemoval using seawater as both the source of reactants & as the reaction medium via electrolysis following the “Equatic” (formerly known as “SeaChange”) process."

🌊Details in a 🧵 below ⬇️
1/12 Image
"The #Equatic process, broadly detailed in (pubs.acs.org/doi/full/10.10…), involves the application of an electric overpotential that splits H2O to form H+ & OH– 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
May 4
🚨𝐍𝐄𝐖 𝐒𝐓𝐔𝐃𝐘🚨

"Stratospheric Aerosol Geoengineering (SAG) is a proposed #SolarGeoengineering approach to offset #ClimateChange impacts, but may have -ve effects on hydrology."

In this regard new study is published in "𝐶𝑙𝑖𝑚𝑎𝑡𝑒 𝐷𝑦𝑛𝑎𝑚𝑖𝑐𝑠."

Details ⬇️
🧵1/9 Image
"Using a climate model, researchers quantify the sensitivity of the tropical monsoon precipitation to the meridional distribution of volcanic #SulfateAerosols prescribed in the #stratosphere in terms of the changes in aerosol optical depth (AOD)."
2/9 Image
"In the experiments, large changes in summer monsoon 🌧️ in the tropical monsoon areas are simulated, mainly over the Indian region, in alliance with meridional shifts in the location of the intertropical convergence zone caused by changes in interhemispheric AOD differences."
3/9 Image
Read 9 tweets
May 4
🚨📝𝐍𝐄𝐖 𝐒𝐓𝐔𝐃𝐘📝🚨

"Researchers recently investigate the feasibility of industrial-scale geological #CarbonSequestration as an effective #ClimateChange mitigation technology."

📜Details are discussed in a🧵⬇️

[1/9] Image
"This investigation was done by performing numerical simulations of coupled multiphase flow and geomechanics on a representative field-scale #geological model in the Gulf of Mexico that could become a typical CO2 #storage site."
2/9
Authors use "representative model to examine 2 potential hazards associated with large-scale CO2 storage:
🔸CO2 might migrate to shallower formations
🔸CO2 injection might induce seismicity due to destabilization of pre-existing faults."
3/9 ImageImage
Read 9 tweets
May 2
🚨🆕STUDY🚨
"The study explored the wide range in #CDR deployment volumes across 1.5°C compatible & high overshoot pathways by evaluating the links btw CDR & conceptually linked scenario aspects, via focus on CDR in 2050 & scenario properties related to reaching #NetZero CO2."
🧵 Image
"#CDR volumes
were further evaluated in terms of their relative and absolute contribution to total mitigation up until reaching
net-zero CO2, showing considerable variation across scenarios with a median relative contribution of around 20%."
2/7 Image
"The volumes of #CDR in 2050 and 2100 and the cumulative amount throughout the 21st century were most strongly correlated to the degree to which CO2 emissions are reduced as a means of reaching net-zero CO2."
3/7 ImageImage
Read 8 tweets

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