Geoengineering Info Profile picture
May 9 8 tweets 6 min read Twitter logo Read on Twitter
🚨🌊NEW PAPER 🌊🚨

"One of the planet’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 Earth’s #climate."

Details from the recent research are discussed in a🧵⬇️
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
"#ParticulateInorganicCarbon production peaks between 47°S and 57°S near the “great calcite belt.” Relative to an abiotic Southern Ocean (SO), organic C production enhances CO2 uptake by 2.80 ± 0.28 Pg C y−1, while PIC production reduces CO2 uptake by 0.27 ± 0.21 Pg C y−1."
4/8 Image
"Without organic C production, the SO would be a CO2 source to the atm. The findings of this study emphasize the importance of #DOC & #PIC production, in addition to the well-recognized role of #POC production, in shaping the influence of C export on air–sea CO2 exchange."
5/8 Image
IN SIMPLE WORDS ⬇️
🌊 "Researchers discovered that if the amount of #carbon produced by tiny organisms in Southern Ocean decreased by 30%, the Southern Ocean would release carbon dioxide instead of #absorbing it, which could worsen the #GreenhouseEffect on our planet."
6/8 Image
Read the open-access paper entitled: "Biogenic carbon pool production maintains the Southern Ocean carbon sink" here ⬇️
pnas.org/doi/10.1073/pn…

#CarbonSink

7/8

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More from @geoengineering1

May 11
🚨NEW PAPER🚨

"Among #sequestration methods, CO2 #injection into oceans is of great primacy due to the oceans’ large sequestration ability. However, there are concerns about the changes in H2O pH as CO2 is injected into oceans."

On this point new study is conducted, details🧵⬇️ ImageImage
🌊 Researchers "experimentally measure the pH and solubility at #pressures up to 400 atm, #temperatures between 283 and 298 K, and different aqueous solutions in a high-pressure #autoclave reactor."
2/10 Image
🌊The results of this research "indicated that increasing pressure increases the #solubility of CO2 in aqueous solutions, resulting in lower pH values. In contrast, increasing #salinity and #temperature lowers the solubility and, as a result, increases the system's pH."
3/10 Image
Read 10 tweets
May 9
🚨🌊NEW PAPER 🌊🚨

"One of the planet’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 Earth’s #climate."

Details from the recent research are discussed in a🧵⬇️
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
May 9
🚨🌊NEW PAPER 🌊🚨

"One of the planet’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 Earth’s #climate."

Details from the recent research are discussed in a🧵⬇️
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
May 8
🚨NEW STUDY🚨
"Six models are used in a recent study to analyze the climatic, environmental & socio-economic consequences of #overshooting a C budget consistent with the 1.5°C temp target along the cause-effect chain from emissions & #CarbonRemovals to climate risks & impact."
🧵 Image
"Global climatic indicators such as CO2-concentration and mean temperature closely follow the #CarbonBudget #overshoot with mid-century peaks of 50 ppmv and 0.35°C, 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
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

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