Tootfinder

💔 Climate-protecting carbon sinks of EU forests are declining
#forests

Climate-protecting carbon sinks of EU forests are declining
Forests cover about 40% of the EU's land area. Between 1990 and 2022, they absorbed around 10% of the continent's man-made carbon emissions. However, the carbon dioxide absorption capacity of forests, also known as carbon sinks, is becoming increasingly weaker.

Study: There is less room to store carbon dioxide, driver of climate change, than previously thought #carbon

Study: There is less room to store carbon dioxide, driver of climate change, than previously thought
The world has far fewer places to securely store carbon dioxide deep underground than previously thought, steeply lowering its potential to help stem global warming, according to a new study that challenges long-held industry claims about the practice.

"Report: Big businesses are doing carbon dioxide removal all wrong"
#CarbonCapture #Climate #ClimateChange

Report: Big businesses are doing carbon dioxide removal all wrong
The technology is needed to limit global warming. But corporations are supporting it in lieu of emissions reductions.

"Google said it would partner with Shell to help it manage its renewable energy supply in the UK."
A partnership signed in Hades.
"The Guardian reported on Monday that a new Google datacentre in Essex was expected to emit more than half a million tonnes of carbon dioxide a year."
Google announces £5bn AI investment in UK before Trump visit | Google | The Guardian

Adam Subhas has been leading the LOC-NESS project
—short for Locking away Ocean Carbon in the Northeast Shelf and Slope
—since 2023.
The ongoing research initiative is evaluating the effectiveness and environmental impact of a marine carbon dioxide removal approach called "ocean alkalinity enhancement" (OAE). 
This method of marine carbon dioxide removal involves adding alkaline substances to the ocean
to boost its natural ability to neutralize acids p…

The LOC-NESS Project
Locking away Ocean Carbon in the Northeast Shelf and Slope

JWST spectroscopy of a blue binary cold classical Kuiper belt object
Ian Wong, Bryan J. Holler, Wesley C. Fraser, Michael E. Brown
https://arxiv.org/abs/2506.11972

JWST spectroscopy of a blue binary cold classical Kuiper belt object
We present observations of two binary systems within the cold classical region of the Kuiper belt -- 2001 XR254 and 2016 BP81 -- obtained with the JWST Near-Infrared Spectrograph. The measured reflectance spectrum of 2001 XR254 is characteristic of the red cold classicals, with strong features due to carbon dioxide, carbon monoxide, and methanol ices. In contrast, 2016 BP81 is a blue binary, with a water-ice-rich surface composition. The two components of the 2016 BP81 binary display identical …

😮‍💨 Carbon 'offsets' aren't working: Researchers offer a 'roadmap' to improve nature-based climate solutions
https://phys.org/news/2025-07-carbon-offsets-roadmap-nature-based.html

Carbon 'offsets' aren't working: Researchers offer a 'roadmap' to improve nature-based climate solutions
A lot of the climate-altering carbon pollution humans release into the atmosphere by burning fossil fuels gets drawn into the Earth's oceans and landscapes through natural processes, mostly through photosynthesis, as plants turn atmospheric carbon dioxide into biomass.

"Breaching the target would ramp up the extreme weather already devastating communities around the world. It would also require carbon dioxide to be sucked from the atmosphere in future to restore the stable climate in which the whole of civilisation developed over the past 10,000 years."
This is bogus. Carbon-neutral #CarbonCaptureAndStorage is the modern perpetual…

Monthly mean carbon dioxide as measured at Mauna Loa Observatory, Hawaii.
July 2025:    
427.87. ppm
July 2024:    
425.55 ppm
The carbon dioxide data on Mauna Loa constitute the longest record of direct measurements of CO2 in the atmosphere.
https://gml.noaa.gov/ccgg/trends/

Trends in CO2 - NOAA Global Monitoring Laboratory
GML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.

En daar daan we weer. De zoveelste maatregel om de klimaatntkenning te ondersteunen: Trump administration takes aim at satellite that measures carbon dioxide and crops : NPR
https://www.npr.org/2025/08/04/nx-s1-5453731/nasa-carbon-dioxide-satelli…

Astroclimes -- measuring the abundance of CO$_2$ and CH$_4$ in the Earth's atmosphere using astronomical observations
Marcelo Aron Fetzner Keniger, David Armstrong, Matteo Brogi, Siddharth Gandhi, Marina Lafarga
https://arxiv.org/abs/2509.10258

Astroclimes -- measuring the abundance of CO$_2$ and CH$_4$ in the Earth's atmosphere using astronomical observations
Monitoring the abundance of greenhouse gases (GHGs) such as carbon dioxide (CO$_2$) and methane (CH$_4$) is necessary to quantify their impact on global warming and climate change. Although a number of satellites and ground-based networks measure the total column volume mixing ratio (VMR) of these gases, they rely on sunlight, and column measurements at night are comparatively scarce. We present a new algorithm, Astroclimes, that hopes to complement and extend nighttime CO$_2$ and CH4 column me…

In 2023, I wrote an article about two Bioenergy-with-CCS 🌲🔥🍃 (BECCS) projects in Denmark🇩🇰, which is somewhat timely given recent news.
It was published on the shipping news page Fathom World, which is no longer online, so I have republished it.
Back then, Ørsted announced plans for carbon capture and storage at two of its bioenergy power plants (Asnæsværket and AvedŸreværket). 🧵

Denmark's biomass plants become part of carbon dioxide shipping project
Ørsted plans to ship carbon emissions from two of its biomass-fired power plants in Denmark to the Northern Lights project in Norway.

Climate-protecting carbon sinks of EU forests are declining #EU

Climate-protecting carbon sinks of EU forests are declining
Forests cover about 40% of the EU's land area. Between 1990 and 2022, they absorbed around 10% of the continent's man-made carbon emissions. However, the carbon dioxide absorption capacity of forests, also known as carbon sinks, is becoming increasingly weaker.

🧽 Native forests sink more carbon than expected, inverse modeling reveals
(... when I first got into this circa 2000 we thought climax ecosystems were "net zero", we're learning that they keep capturing CO2)
https://phys.org/news/2025-06-native-fo…

Native forests sink more carbon than expected, inverse modeling reveals
A study has found New Zealand's native forests are absorbing more carbon dioxide (CO2) than previously thought. Study leader, NIWA atmospheric scientist Dr. Beata Bukosa says the findings could have implications for New Zealand's greenhouse gas reporting, carbon credit costs, and climate and land-use policies. The research was published in Atmospheric Chemistry and Physics.

did you know? teleost fish maintain neutral buoyancy with their swim bladder, which they pump with gas as they descend into depths. specifically, they can pump it with hyperbaric oxygen at partial pressures of *several hundred atmospheres*
they also pressurize their eyes in the same way
https://

XUE - the CO2-rich terrestrial planet-forming region of an externally irradiated Herbig disk: #planet formation models: https://www.su.se/english/news/unusual-carbon-dioxide-rich-disk-detected-around-young-star-challenges-planet-formation-models-1.841751

"Carbon 'offsets' aren't working: Researchers offer a 'roadmap' to improve nature-based climate solutions"
#Climate #ClimateChange #Emissions

Carbon 'offsets' aren't working: Researchers offer a 'roadmap' to improve nature-based climate solutions
A lot of the climate-altering carbon pollution humans release into the atmosphere by burning fossil fuels gets drawn into the Earth's oceans and landscapes through natural processes, mostly through photosynthesis, as plants turn atmospheric carbon dioxide into biomass.

Toward better understanding of energy in economics: Improvements to the Garrett thermodynamic economic model yield a robust system
Brian P. Hanley
https://arxiv.org/abs/2508.08723

Toward better understanding of energy in economics: Improvements to the Garrett thermodynamic economic model yield a robust system
In a series of papers, Garrett, et al, presents a thermodynamic economic model first laid out in "Are there basic physical constraints on future anthropogenic emissions of carbon dioxide?". This model contains a key conceptual issue that obscures a robust system. This system can link to the Energy Based Cobb-Douglas equation. The key conceptual problem is the belief that $λ$, the symbol for growth in Garrett 2011 would disprove the model if it was not constant. However, $λ$ cannot be a cons…

Die US-Regierung unter #DonaldTrump plant laut Haushaltsentwurf die Schließung des Mauna Loa Observatoriums auf Hawaii – dem Ort, an dem seit 1958 die global führenden #CO2-Messungen durchgeführt werden.
Die berühmte

Trump admin tries to kill the most indisputable evidence of human-caused climate change by shuttering observatory
The Mauna Loa laboratory in Hawaii has measured atmospheric carbon dioxide, which — along with other planet-warming pollution — has led directly to climate change, driving sea level rise, supercharging weather and destroying food systems.

Two of NASA's historic data-collecting missions
— used by scientists and earthbound agriculturalists to track carbon dioxide and crop health
— ❌ may be permanently grounded as the Trump administration looks to shrink the agency's spending.
When they launched over a decade ago,
the satellites known as the
"Orbiting Carbon Observatories" (OCOs) revolutionized the collection of carbon data and greenhouse gas science.
To put it simply, the …

NASA satellites tracking greenhouse gases may be decommissioned under Trump
The satellites targeted for removal are the only ones monitoring Earth's greenhouse gases.

Taking the Highway or the Green Road? Conditional Temperature Forecasts Under Alternative SSP Scenarios
Anthoulla Phella, Vasco J. Gabriel, Luis F. Martins
https://arxiv.org/abs/2509.09384

Taking the Highway or the Green Road? Conditional Temperature Forecasts Under Alternative SSP Scenarios
In this paper, using the Bayesian VAR framework suggested by Chan et al. (2025), we produce conditional temperature forecasts up until 2050, by exploiting both equality and inequality constraints on climate drivers like carbon dioxide or methane emissions. Engaging in a counterfactual scenario analysis by imposing a Shared Socioeconomic Pathways (SSPs) scenario of "business as-usual", with no mitigation and high emissions, we observe that conditional and unconditional forecasts would follow a s…

Amazon's 2024 sustainability report says it emitted 68.25M metric tons of carbon dioxide equivalent, up 6% from 2023 and the first rise in three years (Matt Day/Bloomberg)
https://www.bloomberg.com/news/articles/2025-07-16/a…

Amazon’s (AMZN) Carbon Emissions Climbed 6% in 2024 on Data Center Buildout
Amazon.com Inc.’s carbon emissions rose for the first time in three years in 2024, driven by data center construction and fuel consumption by its delivery providers.

⛽ Novel method to convert carbon dioxide into methanol, paving the way for green energy solutions
#fuel

Novel method to convert carbon dioxide into methanol, paving the way for green energy solutions
A research team affiliated with UNIST has made a significant breakthrough in sustainable technology through the development of a method to convert carbon dioxide (CO₂) into methanol—a process that could play a vital role in reducing greenhouse gas emissions and producing environmentally friendly fuels.

The Carbon Cost of Conversation, Sustainability in the Age of Language Models
Sayed Mahbub Hasan Amiri, Prasun Goswami, Md. Mainul Islam, Mohammad Shakhawat Hossen, Sayed Majhab Hasan Amiri, Naznin Akter
https://arxiv.org/abs/2507.20018

The Carbon Cost of Conversation, Sustainability in the Age of Language Models
Large language models (LLMs) like GPT-3 and BERT have revolutionized natural language processing (NLP), yet their environmental costs remain dangerously overlooked. This article critiques the sustainability of LLMs, quantifying their carbon footprint, water usage, and contribution to e-waste through case studies of models such as GPT-4 and energy-efficient alternatives like Mistral 7B. Training a single LLM can emit carbon dioxide equivalent to hundreds of cars driven annually, while data centr…

SERS Raman detection of the CO$_2$ Moisture Swing
Javier Mendez-Lozoya, Estrella Solis Mata, J. Jesus Velazquez Salazar, Alondra Hernandez Cedillo, Miguel Jose Yacaman, Jennifer L. Wade
https://arxiv.org/abs/2508.04893

SERS Raman detection of the CO$_2$ Moisture Swing
The development of scalable, energy-efficient carbon dioxide capture technologies is critical for achieving net-zero emissions. Moisture swing sorbents offer a promising alternative to traditional thermal regeneration methods by enabling reversible CO$_2$ binding through humidity-driven ion hydrolysis. In this study, we investigate the anion speciation dynamics in two classes of MS materials, an anion-exchange resin with bicarbonate anion and activated carbon impregnated with potassium bicarbon…

Trump regime plans to cancel all climate research at @noaa.gov , including its Mauna Loa CO2 measurements, running since 1958.
Last year's budget was $220 million. Next year's would be $0.
https://bsky.app/profile/rarohde.bsky.social/post/3lsucn5ckys2k

Robert Rohde (@rarohde.bsky.social)
Proposed NOAA budget zeros out ALL climate laboratories and cooperative institutions. GFDL, NSSL, GML, etc. This appears to also end the US greenhouse gas sampling network, including at Mauna Loa, the oldest continuous carbon dioxide monitoring site on Earth. https://www.commerce.gov/sites/default/files/2025-06/NOAA-FY2026-Congressional-Budget-Submission.pdf

Asymptotic Behavior of a Buoyant Jet Regime inside a Carbon-dioxide Ejector
Sreetam Bhaduri, Ivan C. Christov, Eckhard A. Groll, Davide Ziviani
https://arxiv.org/abs/2507.01992

Asymptotic Behavior of a Buoyant Jet Regime inside a Carbon-dioxide Ejector
Ejectors are used in various engineering systems, including steam and vapor compression cycles. Optimizing the performance of ejectors requires understanding and analysis of multiphase and turbulent flow structures associated with their internal flow fields. This approach yields higher fidelity but at a high computational cost. Lower-fidelity one-dimensional (1D) models offer lower computational costs; however, 1D models are often empirical and provide limited understanding of the internal flow…

We have to talk about burning trash🗑️🔥
Waste incinerators / waste-to-energy plants that generate electricity and heat are an enormous and often underestimated source of CO2 🏭💨🌎. For example, in Germany, a country where waste-to-energy plants are common, their emissions are higher than those of cement.
Waste incinerator operators will often claim that half of their emissions don't count 🌿 or even that they already have net-negative emissions 🌎. I disagree with both 🧵

Just Stop Burning Trash
Waste-to-energy plants are a massive source of carbon dioxide emissions. Yet, it is not obvious what the best solution for high-emitting incinerators would be. Should incinerators be equiped with carbon capture? How much can recycling rates be improved, and what role should chemical recycling play? And could landfills be a carbon storage solution?

Quantifying Carbon Cycle Extremes and Attributing Their Causes Under Climate and Land Use & Land Cover Change from 1850 to 2300
Bharat Sharma, Jitendra Kumar, Nathan Collier, Auroop R. Ganguly, Forrest M. Hoffman
https://arxiv.org/abs/2507.18874

Quantifying Carbon Cycle Extremes and Attributing Their Causes Under Climate and Land Use & Land Cover Change from 1850 to 2300
Rising carbon dioxide (CO2) emissions due to human activities, such as fossil fuel burning and land use and land cover change (LULCC), are the major driver of climate change. Heatwaves, droughts, and fires have increased and are expected to accelerate with climate change in the twenty-first century and beyond. This increase in extreme climate conditions has the potential to further alter vegetation productivity (called gross primary production or GPP) and carbon uptake capacity. Here, we use a …

SPHEREx Discovery of Strong Water Ice Absorption and an Extended Carbon Dioxide Coma in 3I/ATLAS: #InterstellarComet 3I-ATLAS: https://spherex.caltech.edu/news/3i-atlas-co2-coma

Volcanic Satellites Tidally Venting Na, K, SO2 in Optical & Infrared Light
Apurva V. Oza, Andrea Gebek, Moritz Meyer zu Westram, Armen Tokadjian, Anthony L. Piro, Renyu Hu, Athira Unni, Raghav Chari, Aaron Bello-Arufe, Carl A. Schmidt, Amy J. Louca, Yamila Miguel, Raissa Estrela, Jeehyun Yang, Mario Damiano, Yasuhiro Hasegawa, Luis Welbanks, Diana Powell, Rishabh Garg, Pulkit Gupta, Yuk L. Yung, Rosaly M. C. Lopes

Volcanic Satellites Tidally Venting Na, K, SO2 in Optical & Infrared Light
Recent infrared spectroscopy from the James Webb Space Telescope (JWST) has spurred analyses of common volcanic gases such as carbon dioxide (CO2), sulfur dioxide (SO2), alongside alkali metals sodium (Na I) and potassium (K I) surrounding the hot Saturn WASP-39 b. We report more than an order-of-magnitude of variability in the density of neutral Na, K, and SO2 between ground-based measurements and JWST, at distinct epochs, hinting at exogenic physical processes similar to those sourcing Io's e…

A composite of the effects of major sudden stratospheric warming events on carbon dioxide radiative cooling in the mesosphere-lower-thermosphere
Akash Kumar, MV Sunil Krishna, Alok K Ranjan
https://arxiv.org/abs/2506.23764

A composite of the effects of major sudden stratospheric warming events on carbon dioxide radiative cooling in the mesosphere-lower-thermosphere
The major sudden stratospheric warming (SSW) events strongly influence the mean structure of the entire atmosphere, from the troposphere to the thermosphere. These events disrupt the compositional and thermal structure of the mesosphere and lower thermosphere (MLT), causing spatiotemporal variations in the concentration of trace species of this region. Currently, the role of dynamical changes during SSW events on radiative cooling in the MLT region is not well understood. An investigation of th…

A controversial new book:
"We are eating the Earth"
says excess carbon dioxide in the atmosphere is a long-term challenge resulting from an otherwise cheerful story,
in which more people live better lives with fuller bellies and bigger dreams.
Lawyer-turned-science-cop Tim Searchinger discovered that the popular carbon solution of 20 years ago,
-- plant-based biofuels,
-- was a disaster in the making.
His insight: Land used to grow fuel w…

There’s new hope that humans will save our planet
‘We Are Eating the Earth,’ argues for producing more food on less land to avert climate crisis.

🍋‍🟩 Adding limestone to farmland boosts carbon capture and crop yields, study finds
#limestone

Adding limestone to farmland boosts carbon capture and crop yields, study finds
Adding crushed calcium carbonate—limestone—to agricultural fields can remove tons of carbon dioxide from the atmosphere each year while improving crop yields, a Yale-led study published in Nature Water found.

Global carbon emissions on track to exhaust 1.5°C budget in three years, study warns #environment

Global carbon emissions on track to exhaust 1.5°C budget in three years, study warns
The central estimate of the remaining carbon budget for 1.5°C is 130 billion tons of carbon dioxide (CO2) (from the beginning of 2025). This would be exhausted in a little more than three years at current levels of CO2 emissions, according to the latest Indicators of Global Climate Change study published in the journal Earth System Science Data, and the budget for 1.6°C or 1.7°C could be exceeded within nine years.

CarboNet: A Finite-Time Combustion-Tolerant Compartmental Network for Tropospheric Carbon Control
Federico Zocco, Wassim M. Haddad, Monica Malvezzi
https://arxiv.org/abs/2508.16774

CarboNet: A Finite-Time Combustion-Tolerant Compartmental Network for Tropospheric Carbon Control
While governments and international organizations have set the net-zero target to prevent a climate event horizon, practical solutions are lacking mainly because of the impracticability to completely replace combustion processes. Hence, in this paper, we first design a compartmental network whose states must remain in the nonnegative orthant for physical consistency and in which the carbon dioxide emissions result from the combustion of diesel in vehicles and gas in house heaters. Then, we desi…

🪤 Shipboard system that uses limestone and seawater could cut CO₂ emissions by half
... lots of research on "second-generation" carbon capture that is calcium, not amine-based
#shipping #maritime #co2

Shipboard system that uses limestone and seawater could cut CO₂ emissions by half
Scientists at USC and Caltech, in collaboration with startup company Calcarea, have developed a promising shipboard system that could remove up to half of carbon dioxide emitted from shipping vessels by converting it into an ocean-safe solution.

Zo, hoofdstuk 5, Innovation, zit er op, voornamelijk over CRS en CDR (Carbon Removal and Storage en Carbon Dioxide Removal) twee op realistische schaal nog onbewezen technieken waarmee de fossiele industrie regeringen verleidt om gewoon door te gaan met fossiele brandstoffen. Dat gaat niet werken maar iedereen stinkt er in.
Door naar hoofdstuk 6: Resulience.

Born at PPM site ... =
"parts-per-million – ppm, 10−6"
referenced from https://en.wikipedia.org/w/index.php?title=Parts-per_notation&oldid=1299770504
"Carbon dioxide in the atmosphere of Earth"
There are…

Parts-per notation - Wikipedia

I thought this #Guardian / #WaPo piece by some Peter Brennan might be worth a glance, though expecting only 60% stuff everyone knows (or should know), and 40% tedious irrelevant human interest guff. Which just proves that you can never set one's expectations low enough.
Well, I made it as …

Image Processing Techniques to Identify and Quantify Spatiotemporal Carbon Cycle Extremes
Bharat Sharma, Jitendra Kumar, Auroop R. Ganguly, Forrest M. Hoffman
https://arxiv.org/abs/2506.15555

Image Processing Techniques to Identify and Quantify Spatiotemporal Carbon Cycle Extremes
Rising atmospheric carbon dioxide due to human activities through fossil fuel emissions and land use changes have increased climate extremes such as heat waves and droughts that have led to and are expected to increase the occurrence of carbon cycle extremes. Carbon cycle extremes represent large anomalies in the carbon cycle that are associated with gains or losses in carbon uptake. Carbon cycle extremes could be continuous in space and time and cross political boundaries. Here, we present a m…

Parallel-plate chambers as radiation-hard detectors for time-based beam diagnostics in carbon-ion radiotherapy
Na Hye Kwon, Sung Woon Choi, Soo Rim Han, Yongdo Yun, Min Cheol Han, Chae-Seon Hong, Ho Jin Kim, Ho Lee, Changhwan Kim, Do Won Kim, Woong Sub Koom, Jin Sung Kim, N. Carolino, L. Lopes, Dong Wook Kim, Paulo J. R. Fonte
https://

Parallel-plate chambers as radiation-hard detectors for time-based beam diagnostics in carbon-ion radiotherapy
Accurate range verification of carbon ion beams is critical for the precision and safety of charged particle radiotherapy. In this study, we evaluated the feasibility of using a parallel-plate ionization chamber for real-time, time-based diagnostic monitoring of carbon ion beams. The chamber featured a 0.4 mm gas gap defined by metallic electrodes and was filled with carbon dioxide (CO$_2$), a non-polymerizing gas suitable for high-rate applications. Timing precision was assessed via self-corre…

🪤 Young forests could help to capture carbon in climate change fight
(... leave old forests alone, leave young forests alone!)
https://phys.org/news/2025-07-young-forests-capture-carbon-climate.html

Young forests could help to capture carbon in climate change fight
Young forests regrowing from land where mature woodlands have been cut down have a key role to play in removing billions of tons of atmospheric carbon dioxide (CO2) and combating climate change, a new study reveals.

Double Ionization to CO2 Produces Molecular Oxygen: A Roaming Mechanism
Qibo Ma, Xintai Hao, Jiaqi Zhou, Xiaorui Xue, Qingrui Zeng, Peng Li, Lei Wang, Xueguang Ren
https://arxiv.org/abs/2509.05626

Double Ionization to CO2 Produces Molecular Oxygen: A Roaming Mechanism
We report a combined experimental and theoretical study on the formation of O2+ by electronimpact double ionization and fragmentation of carbon dioxide (CO2) molecule. Through fragment ions and electron coincidence momentum imaging, we determine unambiguously the ionization mechanism by measuring the projectile energy loss in association with the C+ + O2+ channel. Further potential energy and trajectory calculations enable us to elucidate the dynamical details of this fragmentation process, in …

Data collected by Mauna Loa from 1958 onward let us clearly see the evidence of climate change for the first time.
The station samples the air and measures global CO₂ levels.
Charles Keeling and his successors used this data to produce the famous Keeling curve – a graph showing carbon dioxide levels increasing year after year.
But this precious record is in peril.
Donald Trump has decided to defund the observatory recording the data -- as well as the widespread US gre…

Mauna Loa Observatory captured the reality of climate change. The US plans to shut it down
Cutting data climate collection – as the Trump administration is now trying to do – is like breaking a thermometer to avoid knowing you’ve got a fever.

🌍 Satellite data reveal African grasslands' carbon uptake rises with rainfall, unlike forests and savannas
https://phys.org/news/2025-07-satellite-reveal-african-grasslands-carbon.html

Satellite data reveal African grasslands' carbon uptake rises with rainfall, unlike forests and savannas
Africa is a source of uncertainty in carbon cycle calculations. By some estimates, the continent's landscapes emit 2.1 billion tons more carbon dioxide than they take up each year—about equal to 1.5 times the annual emissions from coal-fired power plants. But other estimates are almost the complete opposite, suggesting that the continent's copious plant matter takes up 2.0 billion more tons of carbon dioxide per year than it releases.

Evaluating Isoreticular Series of CALF-20 for Biogas Upgrading using a Pressure/Vacuum Swing Adsorption (PVSA) Process
Changdon Shin, Sunghyun Yoon, Yongchul G. Chung
https://arxiv.org/abs/2507.21126

Evaluating Isoreticular Series of CALF-20 for Biogas Upgrading using a Pressure/Vacuum Swing Adsorption (PVSA) Process
Cyclic swing adsorption processes, such as pressure vacuum swing adsorption (PVSA), have emerged as a promising technology for upgrading biogas by separating carbon dioxide (CO2) from methane (CH4). The rational design of adsorbent materials with tailored properties is important for deployment of high-performance PVSA technology. Metal-organic frameworks (MOFs), particularly the CALF-20 isoreticular series, have attracted interest due to their high CO2 selectivity, thermal and water stability. …

Breakup cascade in gas filament
Ali\'enor Rivi\`ere (PMMH), Zehua Liu (MAE), Jishen Zhang (PMMH), Laurent Duchemin (PMMH), Luc Deike (HMEI), St\'ephane Perrard (PMMH)
https://arxiv.org/abs/2508.00872

Breakup cascade in gas filament
Despite its importance in both geophysical and industrial contexts, the inertial fragmentation of gas filaments has received much less attention than their liquid counterparts. Yet, gas filaments produce the smallest bubble sizes, which drive gas dissolution, critical to ocean-atmosphere exchange such as carbon dioxide and oxygen, as well as marine aerosols emission, serving as nuclei for cloud condensation and ice particle production. Here, we unravel the fundamental physics governing the spli…

Using Model Predictive Control To Reduce Traffic Emissions on Urban Freeways
Alexander Hammerl, Ravi Seshadri, Thomas Kj{\ae}r Rasmussen, Otto Anker Nielsen
https://arxiv.org/abs/2506.13393

Using Model Predictive Control To Reduce Traffic Emissions on Urban Freeways
Urban traffic congestion significantly impacts regional air quality and contributes substantially to pollutant emissions. Suburban freeway corridors are a major source of traffic-related emissions, particularly nitrogen oxides (NOx) and carbon dioxide (CO2). This paper proposes a Model Predictive Control (MPC) framework aimed at emission reduction on peripheral freeway corridors. Emission rates on freeways exhibit high sensitivity to speed fluctuations and congestion recovery processes. To addr…

Norway's Northern Lights project is seen as a model for efforts to pump carbon dioxide deep into wells, but high costs remain an obstacle
https://www.nytimes.com/2025/08/05/business/norway-cabon-capture-northern-lights.html

Norway’s Hedged Bet on Europe’s Energy Future: A Garbage Disposal for Emissions
A business called Northern Lights is seen as a model for efforts to pump carbon dioxide deep into wells, but high costs remain an obstacle.

A Multi-Physics Eulerian Framework for Long-Term Contrail Evolution
Amin Jafarimoghaddam, Manuel Soler
https://arxiv.org/abs/2509.00965 https://arxiv.org/p…

A Multi-Physics Eulerian Framework for Long-Term Contrail Evolution
Condensation trails (contrails) are increasingly recognized as a major contributor to aviation-induced atmospheric warming, rivaling the impact of carbon dioxide. Mitigating their climate effects requires accurate and computationally efficient models to inform avoidance strategies. Contrails evolve through distinct stages, from formation and rapid growth to dissipation or transition into cirrus clouds, where the latter phase critically determines their radiative forcing. This long-term evolutio…

As ocean acidification ramps up, experts call for speedy ocean protection https://news.mongabay.com/2025/06/as-ocean-acidification-ramps-up-experts-call-for-speedy-ocean-protection/

As ocean acidification ramps up, experts call for speedy ocean protection
Ocean health is moving into a danger zone, with rampant human-caused carbon dioxide emissions having already pushed ocean acidification levels beyond safe limits in large swaths of the marine environment, according to a recent study. The new findings underline the urgent need to ramp up protection of the world’s oceans, while simultaneously slashing CO2 emissions, […]

"‘A climate of unparalleled malevolence’: are we on our way to the sixth major mass extinction?"
#Climate #ClimateChange

Nitrogen chemistry of hycean worlds on the example of K2-18b
Maja W. Radecka, Paul B. Rimmer
https://arxiv.org/abs/2509.03455 https://arxiv.org/pdf/2509.03…

Nitrogen chemistry of hycean worlds on the example of K2-18b
A recent observation of the exoplanet K2-18b sparked interest among scientists - large amounts of carbon dioxide and methane were detected in an H2-rich background atmosphere. If the planet is a hycean world (liquid water ocean + hydrogen-dominated atmosphere), it could be habitable under certain conditions. The presence of carbon, hydrogen and oxygen was already confirmed, however, there was no detection of nitrogen or its compounds. Molecular nitrogen is difficult to detect directly. This stu…

Replaced article(s) found for physics.bio-ph. https://arxiv.org/list/physics.bio-ph/new
[1/1]:
- Potential Global Sequestration of Atmospheric Carbon Dioxide by Drylands Forestation
Rafat Qubaja, Murray Moinester, Joel Kronfeld

Benchmarking CO$_2$ Storage Simulations: Results from the 11th Society of Petroleum Engineers Comparative Solution Project
Jan M. Nordbotten, Martin A. Fern{\o}, Bernd Flemisch, Anthony R. Kovscek, Knut-Andreas Lie, Jakub W. Both, Olav M{\o}yner, Tor Harald Sandve, Etienne Ahusborde, Sebastian Bauer, Zhangxing Chen, Holger Class, Chaojie Di, Didier Ding, David Element, Abbas Firoozabadi, Eric Flauraud, Jacques Franc, Firdovsi Gasanzade, Yousef Ghomian, Marie Ann Giddins, Christopher Gr…

Benchmarking CO$_2$ Storage Simulations: Results from the 11th Society of Petroleum Engineers Comparative Solution Project
The 11th Society of Petroleum Engineers Comparative Solution Project (shortened SPE11 herein) benchmarked simulation tools for geological carbon dioxide (CO$_2$) storage. A total of 45 groups from leading research institutions and industry across the globe signed up to participate, with 18 ultimately contributing valid results that were included in the comparative study reported here. This paper summarizes the SPE11. A comprehensive introduction and qualitative discussion of the submitted dat…

Comprehensive Structural Characterization of Charged Polymers Involved in Moisture-Driven Direct Air Capture
Gayathri Yogaganeshan, Rui Zhang, Raimund Fromme, Sharang Sharang, Jamie Ford, Douglas M Yates, Marlene Velazco Medel, Martin Uher, Justin Flory, Jennifer Wade, Petra Fromme
https://arxiv.org/abs/2508.11809

Comprehensive Structural Characterization of Charged Polymers Involved in Moisture-Driven Direct Air Capture
The rise in atmospheric carbon dioxide (CO2) levels has led to urgent calls for effective carbon capture methods, with direct air capture (DAC) emerging as a promising solution. This study focuses on the structural characterization of commercially available alkaline anion-exchange membrane (AEM) polymers, Fumasep FAA-3 and IRA 900, for use in low-energy, moisture-driven DAC applications. A combination of X-ray diffraction, small and wide-angle X-ray scattering (SAXS/WAXS), atomic force microsco…

JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS
Martin A. Cordiner, Nathaniel X. Roth, Michael S. P. Kelley, Dennis Bodewits, Steven B. Charnley, Maria N. Drozdovskaya, Davide Farnocchia, Marco Micheli, Stefanie N. Milam, Cyrielle Opitom, Megan E. Schwamb, Cristina A. Thomas
https://arxiv.org/…

JWST detection of a carbon dioxide dominated gas coma surrounding interstellar object 3I/ATLAS
3I/ATLAS is the third confirmed interstellar object to visit our Solar System, and only the second to display a clear coma. Infrared spectroscopy with the James Webb Space Telescope (JWST) provides the opportunity to measure its coma composition and determine the primary activity drivers. We report the first results from our JWST NIRSpec campaign for 3I/ATLAS, at an inbound heliocentric distance of $r_H=3.32$ au. The spectral images (spanning 0.6-5.3 $μ$m) reveal a CO2 dominated coma, with enh…

🥮 Lunar soil could support life on the Moon, say scientists
#moon

Lunar soil could support life on the Moon, say scientists
Scientists have developed a technology that may help humans survive on the moon. In a study published in the journal Joule, researchers extracted water from lunar soil and used it to convert carbon dioxide into oxygen and chemicals for fuel—potentially opening new doors for future deep space exploration by mitigating the need to transport essential resources like water and fuel all the way from Earth.

"Researchers develop satellite-based method to boost accuracy of coal plant CO₂ emission estimates"
#FossilFuels #Emissions #Climate

Researchers develop satellite-based method to boost accuracy of coal plant CO₂ emission estimates
A new satellite-based method developed by Chinese researchers improves the accuracy of carbon dioxide (CO2) emission estimates from coal-fired power plants, according to a study published in Environmental Science & Technology.

North Pacific waters are acidifying more rapidly below the surface, research reveals #waters

North Pacific waters are acidifying more rapidly below the surface, research reveals
Carbon dioxide in the atmosphere enters the ocean at the surface and has been increasing the acidity of Pacific waters since the beginning of the industrial revolution over 200 years ago. A new study, led by University of Hawai'i at Mānoa oceanographers, revealed that the ocean is acidifying even more rapidly below the surface in the open waters of the North Pacific near Hawai'i.

SPHEREx Discovery of Strong Water Ice Absorption and an Extended Carbon Dioxide Coma in 3I/ATLAS
C. M. Lisse, Y. P. Bach, S. Bryan, B. P. Crill, A. Cukierman, O. Dor\'e, B. Fabinsky, A. Faisst, P. M. Korngut, G. Melnick, Z. Rustamkulov, V. Tolls, M. Werner, M. L. Sitko, C. Champagne, M. Connelley, J. P. Emery, B. Yang, the SPHEREx Science Team
https://

SPHEREx Discovery of Strong Water Ice Absorption and an Extended Carbon Dioxide Coma in 3I/ATLAS
In mid-August 2025, 0.75-5.0 micron SPHEREx imaging spectrophotometric and ancillary NASA-IRTF SpeX 0.7-2.5 micron low-resolution spectral observations of Interstellar Object 3I ATLAS were obtained. The combined spectrophotometry is dominated by features due to water ice absorption and CO2 gas emission. A bright, 3 arcmin radius CO2 gas coma was clearly resolved, corresponding to Qgas,CO2 = 9.4 x 10{^26} molec/sec. From the SPHEREx photometry, we put conservative, preliminary 3sigma upper limit…

"Analysis: Trump’s tariffs could cut just 0.3% from global CO2 emissions in 2025"
#US #USA #America #Climate …

Analysis: Trump's tariffs could cut just 0.3% from global CO2 emissions in 2025 - Carbon Brief
US president Donald Trump’s tariffs might only shave 0.3% off global carbon dioxide (CO2) emissions this year, according to Carbon Brief analysis.

‘A climate of unparalleled malevolence’: are we on our way to the sixth major mass extinction? https://www.theguardian.com/environment/2025/aug/19/a-climate-of-unparalleled-malevolence-are-we-on-our-way-…

Atmospheric CO2 Ice in the Martian Polar Regions: Physical and Spectral Properties From Mars Climate Sounder Observations
R. W. Stevens, P. O. Hayne, A. Kleinb\"ohl, D. M. Kass
https://arxiv.org/abs/2509.02897

Atmospheric CO2 Ice in the Martian Polar Regions: Physical and Spectral Properties From Mars Climate Sounder Observations
$\text{CO}_{\text{2}}$ ice clouds are important for polar energy balance and the carbon dioxide cycle on Mars. However, uncertainties remain regarding their physical and radiative properties, which control how polar $\text{CO}_{\text{2}}$ clouds interact with the global Martian climate. Here, we use Mars Climate Sounder (MCS) observations of atmospheric radiance to estimate these physical and radiative properties. We find that Martian $\text{CO}_{\text{2}}$ clouds are typically composed of larg…

Life cycle assessment tools for road design: analysing linearity assumptions
Nikolaos Kalyviotis
https://arxiv.org/abs/2506.13896 https://

Life cycle assessment tools for road design: analysing linearity assumptions
Road infrastructure significantly impacts how people move and live and the emissions associated with travel behaviour. The design of roads is crucial in mitigating emissions. This paper reviews existing transport life cycle assessment tools that have been developed by various entities and can be used for roads. The review focuses on data sources used in the analysis, methods of estimating carbon dioxide emissions, the underlying software that is used to make the estimates, and any limitations o…

🚛 Eco-driving measures could significantly reduce vehicle emissions
#cars …

Eco-driving measures could significantly reduce vehicle emissions
Any motorist who has ever waited through multiple cycles for a traffic light to turn green knows how annoying signalized intersections can be. But sitting at intersections isn't just a drag on drivers' patience—unproductive vehicle idling could contribute as much as 15% of the carbon dioxide emissions from U.S. land transportation.

🎋 Nickel catalyst opens door to sustainable, branched hydrocarbon fuels
... normally these processes make straight-chained hydrocarbons
https://phys.org/news/2025-07-nickel-catalyst-door-sustainable-hydrocarbon.html

Nickel catalyst opens door to sustainable, branched hydrocarbon fuels
A research team led by Associate Professor Boon Siang Yeo from the Department of Chemistry at National University of Singapore (NUS) has developed a new way to turn carbon dioxide, a greenhouse gas, into valuable liquid hydrocarbons, which are the main components of fuels like gasoline and jet fuel.

"California Leads Nation in Dairy Farm Greenhouse Gas Emission Reductions"
#California #Food #Climate #ClimateChange

California Leads Nation in Dairy Farm Greenhouse Gas Emission Reductions | Happy Eco News
California dairy farms have cut dairy farm greenhouse gas emissions equivalent to 5 million tons of carbon dioxide annually through methane digesters, improved waste management, and herd efficiency gains. This achievement puts the state two-thirds of the way toward its 2030 goal while maintaining milk production leadership and demonstrating economic viability.

"Study finds a 15% solar power boost could cut US CO₂ emissions by millions of metric tons annually"
#US #USA #America #SolarPower

Study finds a 15% solar power boost could cut US CO₂ emissions by millions of metric tons annually
Increasing solar power generation in the U.S. by 15% could lead to an annual reduction of 8.54 million metric tons of carbon dioxide (CO2) emissions, according to a new study led by Harvard T.H. Chan School of Public Health. The researchers found that the climate benefits of solar power differ markedly across U.S. regions, pinpointing where clean energy investments return the greatest climate dividends.

🌰 Offsetting fossil fuel reserves by planting trees is not a viable strategy, analysis finds
https://phys.org/news/2025-06-offsetting-fossil-fuel-reserves-trees.html

Offsetting fossil fuel reserves by planting trees is not a viable strategy, analysis finds
New forests larger than the land area of North America would need to be planted to offset the potential carbon dioxide emissions from the fossil fuel reserves currently held by the world's 200 largest fossil fuel companies.