Take a step-by-step walkthrough of how their solution works in a 🧵 below ⬇️
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1️⃣ "@ebbcarbon with aquaculture farms, desalination plants, ocean research labs, and other industrial sites that process seawater."
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2️⃣ "Ebb intercepts existing salt water flows at the facility and processes the water before it returns to the ocean."
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3️⃣ "Using low carbon electricity, Ebb run the salt water through a stack of ion-selective membranes that separate it into acidic and alkaline solutions."
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4️⃣ "Ebb measure and monitor the pH level and volume of the alkalinity we produce in real time. This enables us to safely return it at levels within the ocean's natural pH variance."
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5️⃣ "Ebb return the alkaline solution to the sea, where it immediately lowers the acidity of the sea water locally."
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6️⃣ "Over weeks to months, the alkaline solution reacts with dissolved CO2 in seawater to create bicarbonate (HCO3), a stable form of carbon storage for 10,000+ years."
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7️⃣ "With more CO2 locked away as bicarbonate, the ocean will naturally equilibrate and sequester more CO2 from the air. Ebb measures the CO2 removed from the air using sensors in the water and ocean and carbonate chemistry models."
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8️⃣ "By partnering with the ocean, Ebb Carbon has the potential to be one of the most energy efficient and cost effective ways to reverse the impacts of climate change both locally and globally."
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🚨New Viewpoint published in Frontiers that responds to Siegert et al.’s paper.
While Siegert et al. warn against polar #geoengineering, Moore et al. argue for a compassionate harm-reduction paradigm, keeping geoengineering research open alongside decarbonization.
Their case: interventions are risky, may not work, and could distract from the essential task which is deep decarbonization.frontiersin.org/journals/scien…
3/ Moore et al. [] reply that this “consequences-based paradigm” (raising alarms to spur action), has dominated climate science for 50 years.
🚨New Nature Geoscience study shows that blooms of Phaeocystis antarctica (microalgae) in the Southern Ocean ~14,000 yrs ago massively drew down CO₂, stabilizing climate. Their decline today could have global consequences.
#CarbonSink #CarbonDrawdown
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2/ Microalgae are pivotal in the Southern Ocean carbon cycle.
A new study from the Alfred Wegener Institute (AWI) reveals that during the Antarctic Cold Reversal (14.7–12.7k yrs BP), algal blooms slowed the rise of atmospheric CO₂.
3/ At the end of the last ice age, the Antarctic Cold Reversal brought vast winter sea ice followed by strong spring melt.
These unique conditions fueled Phaeocystis antarctica blooms, exceptionally efficient at capturing and exporting carbon.
🚨Researchers at the KAIST and the @MIT have developed a new fiber-based material that can capture CO2 directly from the air using only small amounts of electricity, potentially lowering the barriers to large-scale deployment of direct air capture (#DAC) technology.
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2/ DAC systems, which remove CO2 directly from ambient air, have long been hindered by their high energy requirements.
With atm CO₂ concentrations at less than 400ppm, vast volumes of air must be processed, typically requiring large amounts of heat.
3/ The joint team, led by Professor Ko Dong-yeon of KAIST & Professor T. Alan Hatton of MIT, overcame this limitation by designing an electrically conductive fiber adsorbent (ethylenediamine EDA-Y zeolite/cellulose acetate (CA) fiber) that heats itself through Joule heating.
🚨In a new study published in @OneEarth_CP, researchers reveal that human land activities have stripped away roughly 24% of terrestrial carbon stocks (equivalent to 344 billion metric tons of C), underscoring an urgent need to reframe land-use & climate policy.
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2/ Plants + soils store more carbon than the atmosphere + all fossil reserves combined.
But farming, grazing, and forest use have stripped away this natural shield, turning land from a carbon bank into a carbon source.
3/ Researchers call this loss the terrestrial carbon deficit - the gap between what ecosystems could hold (‘potential’) vs. what they actually hold (‘actual’).