Geoengineering Info Profile picture
May 8, 2023 10 tweets 8 min read Read on X
🚨NEW STUDY🚨
"Six models are used in a recent study to analyze the climatic, environmental & socio-economic consequences of #overshooting a C budget consistent with the 1.5°C temp target along the cause-effect chain from emissions & #CarbonRemovals to climate risks & impact."
🧵 Image
"Global climatic indicators such as CO2-concentration and mean temperature closely follow the #CarbonBudget #overshoot with mid-century peaks of 50 ppmv and 0.35°C, respectively."
2/10
Findings of this study highlight that "investigating #overshoot scenarios requires temporally and spatially differentiated analysis of climate, environmental and socioeconomic systems."
3/10
Researchers find "persistent and spatially heterogeneous differences in the distribution of #carbon across various pools, ocean heat content, sea-level rise as well as #economic damages."
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"Moreover, it was find in the study that key impacts, including degradation of marine ecosystem, heat wave exposure & economic damages, are more severe in equatorial areas than in higher latitudes, although absolute #temperature changes are stronger in higher latitudes."
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"The detrimental effects of a 1.5 °C warming and the additional effects due to #overshoots are strongest in non-OECD countries (Organization for Economic Cooperation and Development)."
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"Constraining the overshoot inflates CO2 prices, thus shifting #CarbonRemoval towards early #afforestation while reducing the total cumulative deployment only slightly, while mitigation costs increase sharply in #DevelopingCountries."
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"Thus, scenarios with C budget overshoots can reverse global mean temp increase but imply more persistent & geographically heterogeneous impacts. Overall, the decision about #overshooting implies more severe trade-offs btw #mitigation & impacts in #DevelopingCountries."
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Read the study led by @NB_pik entitled: "Exploring risks and benefits of overshooting a 1.5 °C carbon budget over space and time" here ⬇️
iopscience.iop.org/article/10.108…

#CarbonDioxideRemoval
#Overshoot

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More from @geoengineering1

Jul 6
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (30 June - 06 July 2025):

🔗:

🧵0/19
@Climeworks raised $162 million Series E to scale Generation‑3 direct air capture, cut costs to $400–600/t, and grow its carbon removal portfolio.

1/19
climeworks.com/press-release/…
Terra CO2 secured $124.5 million Series B to build commercial low-carbon cement facilities.

2/19
esgtoday.com/low-carbon-bui…
Read 22 tweets
Jul 2
🚨What if we bet too much on future carbon removal tech and it doesn’t deliver?

New study shows that over-relying on #CDR like DACCS & BECCS could let fossil fuel emissions continue longer, delay action, and raise costs later.

Key findings🧵1/9 Image
2/ Many net-zero plans assume large-scale CDR. But techs like direct air capture (DACCS) & bioenergy with CCS (BECCS) are tiny today and scaling them is risky due to land, energy & cost barriers.
3/ Researchers ran 6 scenarios using GCAM:

-Stage 1: Plan for high or low CDR now
-Stage 2: Learn mid-century whether high CDR is actually feasible or not, and then adjust policy or not

They tracked emissions, energy shifts, costs & who bears the burden. Image
Read 10 tweets
Jul 1
🚨🗓Carbon Removal Events🗓🚨

Here's a list of what's coming up this week (01 July - 07 July 2025) in the field of #CarbonDioxideRemoval:

🔗:

🧵1/11 teamup.com/kshqbfhrqkw36s…Image
EVENT—This is CDR - Embedding CDR: Unlocking Scale Through Industrial Integration with Cara Maesano, PhD. by @openaircollect

🗓01 July 2025 | Online
🔗

2/11lu.ma/ilq6xg6j
CALL FOR CONSULTATION—EU released draft rules for certifying carbon farming, permanent removals, and storage in products

🗓Public comment open until 01 July 2025
🔗

3/11ec.europa.eu/info/law/bette…
Read 12 tweets
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

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