π¨πSTUDYπ¨
"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."
π§΅
"#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
"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
"The volume of #CDR in 2050
is also substantially correlated to the timing of #NetZero CO2." 4/7
"The robustness of the analyzed relationships was evaluated by comparing different scenario filtering and data-cleaning approaches." 5/7
"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
π‘πRead the paper entitled, "Understanding the carbon dioxide removal range in 1.5 Β°C compatible and high overshoot pathways" here β¬οΈ iopscience.iop.org/article/10.108β¦
π° Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (04 August - 10 August 2025):
π:
π§΅0/18
Everoβs Ince biomass plant will be converted into the UKβs first BECCS site by 2029, capturing 217,000 t COβ/year, processing 170,000 t waste wood, and powering 100,000+ homes.
π¨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.
DETAILSπ§΅1/11
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 βplaying Godβ were dominant themes.
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.
π° Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (28 July - 03 August 2025):
π:
π§΅0/21
Germanyβs 2026 draft budget allocated β¬111 million for negative emissions in 2026 and a further β¬320 million in subsequent years. A new federal department has also been set up to focus on carbon removal.
π¨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.π§΅1/8
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 (Oβ) & 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 2060β2069, relative to SSP2-4.5.
π° Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (21-27 July 2025):
π:
π§΅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.
π¨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
DETAILSπ§΅1/8
2/ Microbially induced calcite precipitation (MICP) is a technique where microbes precipitate CaCOβ, 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.