"They naturally extract CO2 from the air and use it as feed. The more CO2 plants absorb, the less CO2 remains trapped in the atmosphere." 2/6
As plants decompose, CO2
is released back to the air
"If left alone, plants are eaten by other organisms and releasing the carbon back to the carbon cycle within months."
3/6
Anoxic conditions slow decomposition
"In anoxic waters, plants decompose extremely slowly, effectively storing the carbon much longer." 4/6
The Black Sea is the ideal location
"It is the largest anoxic body of water on earth, 2km deep, surrounded by fertile lands. The Black Sea is the optimal environment allowing affordable, environmentally safe, gigaton scale #CarbonRemoval in this decade." 5/6
๐จNew study reveals a major hidden C sink in the deep ocean: ancient talus breccias - piles of broken basalt formed along seafloor faults - can trap & store COโ for tens of millions of years, potentially offsetting a significant share of mid-ocean ridge emissions.
DETAILS๐งต1/10
2/ Researchers made the discovery while drilling 60-million-year-old seafloor in the South Atlantic.
They found talus breccias containing ~7.5 wt% COโ - the highest carbon content ever measured in upper ocean crust, up to *40 times richer than previously sampled basalts.
3/ Why so much C?
These breccias form when steep faults at slow-spreading ridges collapse, creating piles of fractured rock with high natural porosity (~19%).
Over millions of yrs, cold seawater circulates thru rubble & precipitates carbonate minerals, trapping dissolved COโ
๐จSoil food webs boost carbon retention in farmlands
A new study reveals that simply returning crop residues to fields can supercharge soil food webs, enabling microbes, nematodes & fungi to lock significantly more photosynthetic C into farmland soils.
Details๐งต1/8 #CarbonSink
2/ Researchers from the Institute of Applied Ecology, Chinese Academy of Sciences (CAS), used field trials and ยนยณC isotope tracing to map how carbon fixed by crops travels into soil and through the soil food web.
3/ FINDINGS:
Returning crop residues (stover) emerged as a key driver:
It increased particulate organic carbon (POC) by ~30.96% & mineral-associated organic carbon (MAOC) by ~11.39% compared with plots where stover was removed.
๐จNew research shows how integrating Direct Air Capture (#DAC) with urea production - paired with COโ pricing can slash emissions, reach cost parity with fossil-based urea by 2050 & reshape global fertiliser markets through policies like the EU #CBAM.
DETAILS๐งต1/9 #CDR
2/ What DAC-urea is?
It's urea fertilizer made with COโ pulled directly from the air instead of COโ from fossil fuels.
Air-captured COโ + green ammonia โ urea.
Same fertilizer, but far lower climate impact.
3/Study presents a framework combining process modelling, prospective LCA & TEA to compare DAC-urea with conventional fossil-based urea today & under 2050 climate scenarios, including a cross-country assessment of Denmarkโs clean electricity system & Egyptโs more C-intensive grid
Our โCarbon Removal Updates Newsletterโ community keeps growing, now past ๐ฐ,๐ฌ๐ฌ๐ฌ subscribers across every continent. Weโve delivered 146+ weekly CDR updates & reached ๐ฑ๐ฌ๐ฌ,๐ฌ๐ฌ๐ฌ+ total views.
๐งต1/10
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๐ฌ๐ง United Kingdom: 13% & ๐ฉ๐ชGermany: 8% lead our European readership
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๐จ The Royal Society has published a new briefing today finding that techniques to reflect a small portion of sunlight back into space (#SRM) could help lower global temperatures if deployed worldwide, but cannot replace emissions cuts or fully address climate impacts.
๐งต1/7
2/ โ The report reviews solar radiation modification (#SRM) approaches, including stratospheric aerosol injection (#SAI) and marine cloud brightening (#MCB), outlining their potential to temporarily reduce warming and associated risks.
3/ โ It notes that SRM would only mask the effects of GHG emissions and would not address issues such as ocean acidification.
๐จ๐ฒ New research reveals that even intact boreal forests, some of the planetโs strongest natural carbon sinks, lose their ability to absorb COโ as they age.
Hereโs what the scientists found & why it matters for our climate models๐งต1/9 #CarbonSink #CarbonRemoval
2/ Boreal forests cover vast regions across Canada, Russia, and Scandinavia and store enormous amounts of carbon in trees and soil.
Theyโre often seen as stable, long-term carbon sinks, but this study challenges that assumption with new global-scale data.
3/ Using seven global Net Ecosystem Productivity (NEP) datasets and a high-resolution forest age map, researchers tracked how C uptake changes as forests grow older.
They used a space-for-time substitution method, comparing forests of different ages to infer long-term trends.