Tootfinder

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.

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.

"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.

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…

Was die „Aber China … !“-Rufer jetzt wohl machen wenn über den Öl-Ausstieg diskutiert wird?
Clean Energy Just Put China's CO2 Emissions Into Reverse For First Time - Slashdot https://news.slashdot.org/story/25/05/

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…

🧽 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.

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…

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…

"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…

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 …

Atmospheric carbon dioxide levels break seasonal records: NOAA https://ground.news/article/annual-carbon-dioxide-peak-passes-another-milestone_e224ea

🌰 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.

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.

#DrumpfEra #EPA moves to end limits on #greenhouse gas emissions by US power plants

EPA moves to repeal limits on greenhouse gas emissions by power plants
The EPA announced proposals to significantly loosen Biden-era regulations on pollution from power plants, including mercury and carbon dioxide.

The Roles of Low-Noise Stations, Arrays and Ocean-Bottom Seismometers in Monitoring UK Offshore Seismicity associated with Subsurface Storage of Carbon Dioxide
Dominik Strutz, Andrew Curtis
https://arxiv.org/abs/2506.08560

The Roles of Low-Noise Stations, Arrays and Ocean-Bottom Seismometers in Monitoring UK Offshore Seismicity associated with Subsurface Storage of Carbon Dioxide
Effective seismic monitoring of subsurface carbon dioxide storage (SCS) sites is essential for managing risks posed by induced seismicity. This is particularly challenging in offshore environments, such as the Endurance license area in the North Sea, where the UK's permanent land-based seismometer network offers limited monitoring capability due to its distance from the expected locations of seismic events. A Bayesian experimental design framework is used to assess enhancements of the network w…

"Just 2% of tidal and offshore solar energy could make a dent in carbon dioxide emissions"
#Oceans #Energy #Renewables

Just 2% of tidal and offshore solar energy could make a dent in carbon dioxide emissions
Harnessing just 2% of the energy potential from tidal and offshore solar sources could make a significant dent in global CO2 emissions, new research has found.

Global ocean acidification has passed safe planetary boundary threshold: Study https://news.mongabay.com/short-article/2025/06/global-ocean-acidification-has-passed-safe-planetary-boundary-threshold-study/

Global ocean acidification has passed safe planetary boundary threshold: Study
A new assessment finds that the world’s oceans crossed the safe threshold for acidification in 2020, breaching a key planetary boundary and posing serious threats to marine life. Ocean acidification is caused when excess atmospheric carbon dioxide, resulting from human activities like burning fossil fuels, dissolves in seawater, forming carbonic acid that increases the water’s […]

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?

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.

@…
Carbon dioxide concentration records
from Southern to Northern latitudes, 1957 to date
https://scrippsco2.ucsd.edu/#home-plot

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…

🪤 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.

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.

Nearest neighbor permutation entropy detects phase transitions in complex high-pressure systems
Arthur A. B. Pessa, Leonardo G. J. M. Voltarelli, Lucio Cardozo-Filho, Andres G. M. Tamara, Claudio Dariva, Papa M. Ndiaye, Matjaz Perc, Haroldo V. Ribeiro
https://arxiv.org/abs/2506.06516

Nearest neighbor permutation entropy detects phase transitions in complex high-pressure systems
Understanding the high-pressure phase behavior of carbon dioxide-hydrocarbon mixtures is of considerable interest owing to their wide range of applications. Under certain conditions, these systems are not amenable to direct visual monitoring, and experimentalists often rely on spectrophotometric data to infer phase behavior. Consequently, developing computationally efficient and robust methods to leverage such data is crucial. Here, we combine nearest neighbor permutation entropy, computed dire…

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…

Trees Can Warn Us When Volcanos Are Ready to Erupt–and NASA Satellites Can Read Their Signals https://www.goodnewsnetwork.org/trees-can-warn-us-when-volcanos-are-ready-to-erupt-and-nasa-satellites-can-read-th…

Trees Can Warn Us When Volcanos Are Ready to Erupt–and NASA Satellites Can Read Their Signals
Before a volcano erupts, rising magma squeezes out emissions of carbon dioxide visible from space, but trees might be a better hint.

Modeling and Simulation of Coupled Biochemical and Two-Phase Compositional Flow in Underground Hydrogen Storage
Elyes Ahmed, Brahim Amaziane, Salaheddine Chabab, St\'ephanie Delage Santacreu, Guillaume Galli\'ero, Olav M{\o}yner, Xavier Raynaud
https://arxiv.org/abs/2506.02582

Modeling and Simulation of Coupled Biochemical and Two-Phase Compositional Flow in Underground Hydrogen Storage
Integrating microbial activity into underground hydrogen storage models is crucial for simulating long-term reservoir behavior. In this work, we present a coupled framework that incorporates bio-geochemical reactions and compositional flow models within the Matlab Reservoir Simulation Toolbox (MRST). Microbial growth and decay are modeled using a double Monod formulation, with populations influenced by hydrogen and carbon dioxide availability. First, a refined Equation of State (EoS) is employe…

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, […]

Reactive Transport Simulation of Silicate-Rich Shale Rocks when Exposed to CO2 Saturated Brine Under High Pressure and High Temperature
Shaziya A. Banu, Venkata R. S. B. Varanasi, Arash Noshadravan, Sara Abedi
https://arxiv.org/abs/2506.05122

Reactive Transport Simulation of Silicate-Rich Shale Rocks when Exposed to CO2 Saturated Brine Under High Pressure and High Temperature
This study examines the feasibility of carbon dioxide storage in shale rocks and the reliability of reactive transport models in achieving accurate replication of the chemo-mechanical interactions and transport processes transpiring in these rocks when subjected to CO2 saturated brine. Owing to the heterogeneity of rocks, experimental testing for adequate deductions and findings, could be an expensive and time-intensive process. Therefore, this study proposes utilization of reactive transport m…