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."
4/10 ImageImage
"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

9/10 Image

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More from @geoengineering1

Aug 5
🚨New research out on US public perceptions of #SolarGeoengineering:

More Americans oppose SRM research than support it, and 1 in 5 believe government-led atmospheric modification is already underway.

DETAILS🧵1/11 Image
2/ Using 64 interviews, 10 focus groups, and a survey of 3,076 Americans, the study found strong initial rejection of solar radiation modification (#SRM) as a research priority.

Skepticism, fear of unintended consequences, and concern over “playing God” were dominant themes. Image
3/ Only 32.6% supported further SRM research. A notable 43.7% opposed it. For comparison, support was ~80% in similar studies from a decade ago. Enthusiastic support is now virtually nonexistent in qualitative responses. Image
Read 12 tweets
Aug 3
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (28 July - 03 August 2025):

🔗:

🧵0/21
Germany’s 2026 draft budget allocated €111 million for negative emissions in 2026 and a further €320 million in subsequent years. A new federal department has also been set up to focus on carbon removal.


1/21linkedin.com/posts/dvne_cdr…
@HomeworldBio awarded ~$1.4M to 11 GGR projects via its Garden Grants, backing innovations like methane-eating microbes and enhanced rock weathering.


2/21homeworld.bio/blog/announcin…
Read 24 tweets
Aug 1
🚨How does #SolarGeoengineering affect air pollution & public health?

New study using a cutting-edge Earth system model shows that #SAI has only modest effects on PM₂.₅ & ozone-related mortality & these impacts are mostly due to climate shifts, not aerosol deposition.🧵1/8 Image
2/ Using CESM2-WACCM6 simulations across three scenarios (SSP2-4.5 baseline, ARISE-SAI-1.5, ARISE-SAI-1.0), the study quantifies global mortality attributable to ozone (O₃) & fine particulate matter (PM₂.₅) under future SAI deployment targeting 1.5°C and 1.0°C warming levels.
3/ Findings:

In the ARISE-SAI-1.5 scenario, maintaining global mean temp at 1.5°C above pre-industrial levels via SAI results in:

- 1.26% reduction in ozone-related mortality

- 0.86% increase in PM₂.₅-related mortality during 2060–2069, relative to SSP2-4.5. Image
Image
Read 10 tweets
Jul 27
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (21-27 July 2025):

🔗:

🧵0/22
Chestnut Carbon secured up to $210M in non-recourse financing, led by J.P. Morgan for its afforestation project, marking a first-of-its-kind deal in the US carbon removal space.


1/22carbonherald.com/chestnut-secur…
@MissionZeroTech won £6M from the UK government to advance design work for a DAC-enabled SAF plant in Cumbria, building on £1.38M in prior funding.


2/22missionzero.tech/lab-notes/uk-g…
Read 24 tweets
Jul 25
🚨Scientists have discovered a common soil bacterium, Bacillus megaterium, that can rapidly remove CO2 from the atmosphere by transforming it into solid limestone (calcium carbonate) within 24 hours, without creating toxic byproducts.
#CDR #CarbonMineralization

DETAILS🧵1/8 Image
2/ Microbially induced calcite precipitation (MICP) is a technique where microbes precipitate CaCO₃, often used in eco-friendly building materials.

Most MICP uses urease to break down urea, which produces ammonium, a problematic byproduct.
3/ Bacillus megaterium is unique in a sense, it contains both urease and carbonic anhydrase (CA) enzymes. The latter allows it to fix CO₂ directly without needing urea.

But which pathway dominates? This study investigated that. Image
Read 9 tweets
Jul 22
🚨🗓Carbon Removal Events🗓🚨

Here's a list of what's coming up this week (22 July - 28 July 2025) in the field of #CarbonDioxideRemoval:

🔗:

🧵1/11 teamup.com/kshqbfhrqkw36s…Image
EVENT—Food, Ag & Regen Farming + Biotech & Life Sciences Call by 4WARD

🗓23 July 2025 | Online
🔗

2/11circle.4ward.earth/c/events/food-…
EVENT—The Future of Carbon: Technology vs. Nature-based Solutions by Centre for Climate and Business Solutions

🗓23 July 2025 | British Columbia
🔗

3/11lu.ma/gk1jsg18
Read 12 tweets

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