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May 2, 2023 8 tweets 5 min read Read on X
🚨🆕STUDY🚨
"The study explored the wide range in #CDR deployment volumes across 1.5°C compatible & high overshoot pathways by evaluating the links btw CDR & conceptually linked scenario aspects, via focus on CDR in 2050 & scenario properties related to reaching #NetZero CO2."
🧵 Image
"#CDR volumes
were further evaluated in terms of their relative and absolute contribution to total mitigation up until reaching
net-zero CO2, showing considerable variation across scenarios with a median relative contribution of around 20%."
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"The volumes of #CDR in 2050 and 2100 and the cumulative amount throughout the 21st century were most strongly correlated to the degree to which CO2 emissions are reduced as a means of reaching net-zero CO2."
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"The volume of #CDR in 2050
is also substantially correlated to the timing of #NetZero CO2."
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"The robustness of the analyzed relationships was evaluated by comparing different scenario filtering and data-cleaning approaches."
5/7 Image
"Beyond filtering and cleaning, additional factors that influence #CDR deployment in scenarios, such as discount rates, carbon price trajectories, and scenario design choices," were also discussed in this study.
6/7
💡📖Read the paper entitled, "Understanding the carbon dioxide removal range in 1.5 °C compatible and high overshoot pathways" here ⬇️
iopscience.iop.org/article/10.108…

#CarbonDioxideRemoval
#NetZero

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More from @geoengineering1

Jun 16
🚨Tired of drowning in climate science papers?

🎧 Remove & Reflect Podcast does the digging for you—turning research & reports into short, sharp episodes on #CDR & #SRM.

YouTube:youtube.com/@removeandrefl…

Spotify:open.spotify.com/show/0dxuwkOuH…

Check out some must-listen episodes:🧵1/12
This episode dives into a radical proposal: using a buried nuclear explosion on the seafloor to break up basalt & speed up carbon removal via Enhanced Rock Weathering. The goal? Sequester 30 years of global CO2.

2/12
This episode unpacks a preprint by Hosea Olayiwola Patrick drawing lessons from COVID-19 for solar geoengineering.

3/12
Read 13 tweets
Jun 15
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (09 June - 15 June 2025):

🔗:

🧵0/17
@InSoilClimate secured its largest funding to date through a €100 million agreement with Key Carbon, accelerating regenerative agriculture and carbon credit generation across Europe.

1/17
insoil.com/blog/2025/06/1…
Canada Nickel partnered with NetCarb to scale mineral carbon sequestration at Crawford. NetCarb's tech could boost CO₂ uptake 10‑fold to 10–15 Mt/year, vs 1.5 Mt via Canada Nickel's proprietary IPT Carbonation.

2/17
prnewswire.com/news-releases/…
Read 20 tweets
Jun 11
🚨A new study [preprint] shows that injecting sulfur at 50km could make #SolarGeoengineering much safer.

It cools the planet more effectively, speeds ozone recovery & avoids stratospheric disruptions. This could be done using a fleet of clean, reusable H2 rockets.

DETAILS🧵1/10 Image
2/ SAI involves spraying SO₂ into stratosphere, where it forms aerosols that reflect sunlight—cooling Earth. It mimics volcanic eruptions like Mt. Pinatubo (1991), which temporarily cooled the planet.

But current “SAI models” inject SO2 at a rate of 10 Tg/yr at ~25km altitude.
3/ But Injecting at 25 km creates problems

Aerosols accumulate in the tropical lower stratosphere, causing up to 6°C warming in that layer.

This disturbs jet streams, increases stratospheric water vapor, and delays the ozone layer’s recovery—by 25–55 years in Antarctica. Image
Image
Image
Read 11 tweets
Jun 8
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (02 June - 08 June 2025):

🔗:

🧵0/21
@capture_air raised $50M in Series A funding to scale its California-based DAC tech.

1/21
carbonherald.com/aircapture-sec…
UK fintech Wise pledged £500K to support nature-based and hybrid CDR in Latin America and Asia-Pacific.



2/21carbon-pulse.com/404067/
Read 24 tweets
Jun 6
🚨A new study has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can find its way back to the atmosphere as CO₂ is released from the surfaces of rivers at a rate of 1.2 billion tonnes per year.

Details🧵1/8 Image
2/ To understand the true source of river CO₂, researchers compiled a global dataset of 1,195 radiocarbon measurements of dissolved inorganic carbon (DIC), CO₂ & CH₄ from rivers & streams.

This let them determine whether the emitted carbon was modern—or much older. Image
3/ Using radiocarbon signatures (¹⁴C), they found that 59% of river CO₂ emissions come from "old" C—millennia-old soil carbon & even petrogenic carbon (rock-derived, >55,000 years old)

Only ~41% came from recent biological sources like plants & microbes (decadal carbon). Image
Read 9 tweets
Jun 3
🚨🗓Carbon Removal Events Calendar by Andrew Lockley!🗓🚨

Here's a list of what's coming up this week (03 June - 09 June 2025) in the field of #CarbonDioxideRemoval:

🔗:

🧵1/13 teamup.com/kshqbfhrqkw36s…Image
EVENT—Carbon Removal Summit: Business Value in a Shifting Landscape by CUR8 Events

🗓03 June 2025 | London, England
🔗

2/13lu.ma/hn94fhf4
EVENT—Mastering Carbon Credit Contracts for Corporate Buyers and Suppliers by Ceezer

🗓03 June 2025 | Online
🔗

3/13insight.ceezer.earth/mastering-carb…
Read 14 tweets

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