"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
"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
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
"#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
"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
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
Read the open-access paper entitled: "Biogenic carbon pool production maintains the Southern Ocean carbon sink" here ⬇️ pnas.org/doi/10.1073/pn…
🚨“While Germany aims to achieve climate neutrality by 2045, reducing CO2 emissions must be the primary step. #CDR measures, while important, cannot remove the large amount of CO2 emitted in 🇩🇪. It is assumed that CDR can only offset ~5–15% of current emissions.”
DETAILS🧵1/11
But how effective and efficient are the various possible #CDR measures? What are the hurdles to implementing them? What are the costs? How environmentally friendly are they?
2/11
The research team investigated these and other questions in its latest study in which it analyzed the feasibility of 14 #CDR measures that could be implemented in Germany. The measures include #DACCS & #BECCS as well as measures to increase carbon uptake by ecosystems.
📰 Here's your round-up of top Carbon Dioxide Removal News / Developments, Reports & Scientific Papers from this week (𝟭𝟯 𝗠𝗮𝘆 - 𝟭𝟵 𝗠𝗮𝘆 𝟮𝟬𝟮𝟰)
🔗:
#CarbonDioxideRemoval
#CDR
🧵0/20
Frontier – the advance market commitment aiming to accelerate the development of CDR technologies, announced that they are accepting applications for their fourth prepurchase programme to receive $500k each.
@ToucanProtocol announced a total of $250k in grant funding available to apps integrating CHAR: the world's first onchain carbon dioxide removal credit pool, and a building block for planet positive applications.
🚨 In a NEW study published today, researchers presented an analysis of the atmospheric sulfur budget using nine state-of-the-art global circulation models with interactive aerosol modules & sulfur chemistry.
In particular, "researchers showcase the burdens of the main sulfur species represented in these models (OCS, sulfate aerosols, and SO2), as well as their latitudinal and vertical distribution and seasonal variability. Emission and deposition fluxes were also discussed."
2/12
FINDINGS:
"Sulfate aerosol, carbonyl sulfide & SO2 behave very differently in the atm, providing insight into the modeled processes. OCS is almost chemically inert in troposphere & is primarily influenced by transport mechanisms but undergoes photolysis in stratosphere."