Geoengineering Info Profile picture
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%."
2/7 Image
"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."
3/7 ImageImage
"The volume of #CDR in 2050
is also substantially correlated to the timing of #NetZero CO2."
4/7 Image
"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

7/7 Image

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More from @geoengineering1

Jun 1
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (26 May - 01 June 2025):

🔗:

🧵0/21
Gresham House raised £500M to expand UK forestry and carbon removal, targeting 4.7M tonnes of CO₂ via nature-based credits.

1/21
esgnews.com/gresham-house-…
Biochar firm TOWING raised ¥1.94B (~$12M) in Series B to scale its high-performance carbon removal tech.

2/21
prtimes.jp/main/html/rd/p…
Read 23 tweets
May 29
🚨A NEW study explores a theoretical #geoengineering approach to combat global warming — by altering Earth’s orbit.

Simulations suggest that shifting Earth ~5.8% farther from the Sun could cool the planet by roughly 7K, effectively offsetting projected warming.

DETAILS🧵1/10
2/ Climate models suggest global temperatures could rise by 7K by 2100, driven by greenhouse gas emissions.

This study asks: what if, instead of changing the atmosphere, we changed our position in space?
Specifically: increase Earth’s orbital radius.
3/ Basically, the paper builds on the science of Milankovitch cycles which is slow, natural variations in Earth’s orbit and tilt that have triggered past ice ages.

These cycles show that even slight orbital changes can dramatically affect climate. Image
Read 12 tweets
May 28
🚨What’s ahead in #SolarGeoengineering?🚨

From research proposal deadlines to online events, in-person conferences, and job alerts — our SRM Events Calendar is packed with all key updates.

🔗:

Here’s what’s coming up in the SRM field:🧵1/13 teamup.com/ks64mmvtit583e…Image
CALL FOR RESEARCH PRESENTATION PROPOSAL—RFF and the Harvard Solar Geoengineering Research Program invite individuals to present research at their upcoming workshop

🗓Deadline: 30 May 2025
🔗

2/13rff.org/events/confere…
EVENT—Climate Intervention Virtual Symposia #18

🗓30 May 2025 | Online
🔗

3/13sites.google.com/view/solargeo-…
Read 14 tweets
May 27
🚨🗓Carbon Removal Events Calendar by Andrew Lockley!🗓🚨

Here's a list of what's coming up this week (27 May - 03 June 2025) in the field of #CarbonDioxideRemoval:

🔗:

🧵1/15 teamup.com/kshqbfhrqkw36s…Image
EVENT—This is CDR: Avnos' Water-Positive, Hybrid Direct Air Capture with Will Kain by @openaircollect

🗓27 May 2025 | Online
🔗lu.ma/xw0eh18o
EVENT—A European CDR Purchasing Programme by CDR Policy Scoop

🗓27 May 2025 | Online
🔗linkedin.com/events/aeurope…
Read 16 tweets
May 25
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (19 May - 25 May 2025):

🔗:

🧵0/24
@AltCarbonIndia secured $12 million in seed funding to scale its enhanced rock weathering operations in South Asia.

1/24
alt-carbon.com/press-releases…
JPMorgan signed 13-year deal with CO280 to remove 450,000 tons of biogenic CO₂ from a U.S. pulp mill at under $200/ton—one of the largest and lowest-cost CDR deals to date.

2/24
esgtoday.com/jpmorgan-signs…
Read 27 tweets
May 23
🚨Can a single particle both reflect sunlight and capture CO₂—offering a two-in-one tool for climate intervention?🚨

In a new study [preprint], researchers tested the idea with zeolite aerosols. Here's what they found:🧵1/6

#SolarGeoengineering #CDR #ClimateTech Image
The concept: Inject aerosols into the stratosphere that not only reflect sunlight (like standard #SAI) but also adsorb CO₂ from the air.

Zeolites, known for their CO₂-trapping ability, seemed like a candidate for this dual function. Image
But stratospheric conditions are harsh:

•~0.05 atm pressure

•Very low temperatures

Under these conditions, zeolites lose over 99.97% of their CO₂ adsorption capacity compared to ground-based DAC, finds the study. Image
Read 7 tweets

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