Geoengineering Info Profile picture
May 20, 2023 6 tweets 3 min read Read on X
Rewind "restore the earth's carbon balance by storing #OrganicCarbon in anoxic water."

#CarbonDioxideRemoval

Details in a 🧵 below ⬇️
1/6 Image
Plants are the best option for capturing CO2

"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 Image
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 Image
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 Image
Read more about Rewind here ⬇️
rewind.earth

#CarbonDioxideRemoval

6/6 Image

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More from @geoengineering1

Feb 20
🚨What if we could remove methane from the atmosphere—fast?🚨

A new study proposes two ways to use 𝐚𝐭𝐨𝐦𝐢𝐜 𝐜𝐡𝐥𝐨𝐫𝐢𝐧𝐞 to destroy this powerful GHG: one with reactors, the other by releasing chlorine into the air. But one of these ideas comes with serious risks:🧵1/10 Image
2/ Methane is a powerful but short-lived greenhouse gas, responsible for ~0.5°C of global warming. "It’s 80x more potent than CO₂ over 20 years," and its atmospheric levels continue to rise—despite global pledges to cut emissions. Image
3/ In nature, hydroxyl (OH) radicals break down methane, but the process is slow.

Chlorine (Cl) radicals can do the same job 16x faster, though they are far less abundant in atm—destroying only ~1-4% of methane today.

What if we increased chlorine’s role?
Read 11 tweets
Feb 18
🚨🐺Scotland’s lost forests could rise again with the help of wolves🐺🚨

A new study finds that reintroducing these apex predators in the Scottish Highlands could restore wild woodlands & capture 𝟏 𝐦𝐢𝐥𝐥𝐢𝐨𝐧 𝐭𝐨𝐧𝐬 𝐨𝐟 𝐂𝐎₂ 𝐚𝐧𝐧𝐮𝐚𝐥𝐥𝐲 (#CDR). Here’s how:🧵1/7 Image
2/ The Scottish Highlands were once a land of towering pines and roaming wolves. But 250 years ago, wolves vanished—and with them, nature’s balance. Red deer, left unchecked, now number 400,000, grazing young trees before they can take root.
3/ Researchers modeled what would happen if wolves returned to the Cairngorms, the Central Highlands, and beyond.

Their findings? 167 wolves could reduce deer numbers enough for forests to regrow naturally—on a vast scale. Image
Read 8 tweets
Feb 18
🚨🗓CDR REMINDERS!🗓🚨

Here's a list of what's coming up this week (18 February - 24 February 2025) in the field of #CarbonDioxideRemoval

#CDREvents #Deadlines #CDRJobs

🔗🗓️Link to the CDR Events Calendar:


🧵1/21 teamup.com/kshqbfhrqkw36s…Image
EVENT—Carbon Removal Challenge Info Session: The Makings of a Great CDR Project by OpenAir Collective

🗓18 February 2025
📍Online
🔗

2/21lu.ma/48hbtpjl
EVENT—Tracking progress on carbon removal across Europe by Carbon Gap

🗓18 February 2025
📍Brussels
🔗

3/21carbongap.org/the-carbon-cou…
Read 22 tweets
Feb 16
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (10 February - 16 February 2025):

🔗:

🧵0/22
Chestnut Carbon raised $160M in Series B to expand afforestation and sequester 100M tons of CO₂ through its Sustainable Restoration Project.

1/22
prnewswire.com/news-releases/…
@mastreforest announced the first restorative carbon removal project and raises $25M in Series B to scale Biomass Carbon Removal & Storage (BiCRS).

2/22
prnewswire.com/news-releases/…
Read 25 tweets
Feb 14
🚨☀Researchers have developed a reactor that pulls CO2 directly from the air and converts it into sustainable fuel, using sunlight as the power source—no fossil energy required.
#DirectAirCapture #CDR

DETAILS 🧵1/8 Image
2/ Direct Air Capture is seen as a key tool to fight climate change. But current methods are costly, energy-intensive & require storing CO₂ underground, which has long-term risks. Meanwhile, most CO₂-to-fuel tech needs pure CO₂ and a lot of energy. This study changes that.
3/ Researchers developed a dual-bed flow reactor that captures CO₂ from the air and converts it into syngas (CO + H₂) using sunlight. Unlike other methods, it doesn’t need concentrated CO₂ or extreme heat. It captures, stores, and converts CO₂—all in one system.
Read 9 tweets
Feb 13
🚨Many climate models assume large-scale Bioenergy with Carbon Capture and Storage (#BECCS) will help limit global warming. But a new study by @PIK_Climate shows that if we respect planetary boundaries, BECCS potential is far lower than expected. 🧵1/8 Image
2/ BECCS involves planting fast-growing crops, burning them for energy, capturing the CO₂, and storing it underground. While this sounds like a promising carbon removal method, large-scale deployment could disrupt ecosystems and strain natural resources.
3/ The study looked at how much CO₂ BECCS could remove without crossing planetary boundaries (PB). It considered 4 key limits:

1⃣ Fertilizer (Nitrogen) use – Too much nitrogen harms soil & water

2⃣ Freshwater availability – BECCS needs water, but so do people & ecosystems Image
Read 10 tweets

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