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May 2, 2023 β€’ 8 tweets β€’ 5 min read β€’ Read on X
πŸš¨πŸ†•STUDY🚨
"The study explored the wide range in #CDR deployment volumes across 1.5Β°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."
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"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
πŸ’‘πŸ“–Read the paper entitled, "Understanding the carbon dioxide removal range in 1.5 Β°C compatible and high overshoot pathways" here ⬇️
iopscience.iop.org/article/10.108…

#CarbonDioxideRemoval
#NetZero

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More from @geoengineering1

Aug 10
πŸ“πŸ’‘π–πžπžπ€π₯𝐲 𝐂𝐃𝐑 𝐇𝐒𝐠𝐑π₯π’π π‘π­π¬πŸ’‘πŸ“

πŸ“° Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (04 August - 10 August 2025):

πŸ”—:

🧡0/18
Evero’s Ince biomass plant will be converted into the UK’s first BECCS site by 2029, capturing 217,000 t COβ‚‚/year, processing 170,000 t waste wood, and powering 100,000+ homes.

1/18
bioenergy-news.com/news/evero-bio…
Ottawa-based DAC developer Terrafixing secured $1.8M from the Canadian government.


2/18carbon-pulse.com/424910/
Read 20 tweets
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 β€œplaying 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
πŸ“πŸ’‘π–πžπžπ€π₯𝐲 𝐂𝐃𝐑 𝐇𝐒𝐠𝐑π₯π’π π‘π­π¬πŸ’‘πŸ“

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

πŸ”—:

🧡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 PMβ‚‚.β‚… & 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 (PMβ‚‚.β‚…) under future SAI deployment targeting 1.5Β°C and 1.0Β°C warming levels.
3/ Findings:

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

- 1.26% reduction in ozone-related mortality

- 0.86% increase in PMβ‚‚.β‚…-related mortality during 2060–2069, relative to SSP2-4.5. Image
Image
Read 10 tweets
Jul 27
πŸ“πŸ’‘π–πžπžπ€π₯𝐲 𝐂𝐃𝐑 𝐇𝐒𝐠𝐑π₯π’π π‘π­π¬πŸ’‘πŸ“

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

πŸ”—:

🧡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 Β£6M from the UK government to advance design work for a DAC-enabled SAF plant in Cumbria, building on Β£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 COβ‚‚ directly without needing urea.

But which pathway dominates? This study investigated that. Image
Read 9 tweets

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