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carbon dioxide
Trends
- 1Scientists Rethink Ocean Alkalinity Enhancement as Climate Tool▼Rethinking ocean alkalinity enhancement
A new Nature article argues that ocean alkalinity enhancement, a proposed method of boosting the ocean's capacity to absorb carbon dioxide, needs to be reassessed before large-scale deployment. The piece examines how adding alkaline substances to seawater could help combat climate change, while highlighting open questions about effectiveness, environmental side effects and governance that must be resolved.
- 2Energy Dome bets on carbon dioxide batteries for grid storage●Energy Dome and its carbon dioxide batteries There’s a growing need for long-duration storage to meet energy demand and
Energy Dome, an energy storage startup, is drawing attention for its long-duration grid batteries that store energy using compressed carbon dioxide gas. As renewables expand, grids increasingly need storage that can deliver power for many hours, not just minutes. The company's CO2-based systems are being discussed as a potential answer to balancing fluctuating wind and solar output and meeting growing energy demand.
- 3Bees breathe through spiracles, not lungs, expert explains●# theBeeAt3 Basic bee facts every day at 3pm. 50. Bees don’t have lungs (or a nose!). Air enters the bee body through ex
An Irish bee expert is sharing daily bee facts, explaining that bees have neither lungs nor a nose. Instead, air enters their bodies through small external openings called spiracles, which run along the body. A simple gas exchange system then delivers oxygen to internal tissues and expels carbon dioxide, allowing the insects to breathe without the respiratory organs found in mammals.
- 4New data products released to monitor global carbon cycle▼Celebrating the release of major data products to monitor global carbon cycle
NOAA's Atlantic Oceanographic and Meteorological Laboratory is marking the release of major new data products designed to monitor the global carbon cycle. The datasets are intended to improve tracking of carbon dioxide uptake and emissions across oceans and atmosphere, supporting climate research and policy decisions worldwide.
- 5Cutting superpollutants seen as fast climate win▼disrupting supply chains, agriculture, energy systems and workplaces, and many can be cut with technologies available to
Discussion is focused on superpollutants — methane, black carbon, tropospheric ozone, nitrous oxide and high-warming refrigerant gases — which warm the planet far more powerfully than carbon dioxide per tonne. These pollutants are already disrupting supply chains, agriculture, energy systems and workplaces. Advocates stress that many emissions can be slashed using technologies available today, making rapid cuts one of the most achievable ways to slow warming in the near term.
- 6The chemistry behind Brazil's concrete corrosion threat▼# Brazil The science behind the threat begins with chemistry. Steel bars embedded in concrete are protected by a passive
In Brazil, discussion is turning to the science of concrete degradation. Steel bars embedded in concrete are protected by a passive oxide film sustained by the high alkalinity of the concrete's pore solution. Carbon dioxide from the atmosphere diffuses into the concrete and reacts with the cement, lowering that alkalinity and stripping the steel of its protection, which opens the way to corrosion and structural weakening.
- 7Batagaika: the world's largest permafrost crater keeps expanding●Le cratère de Batagaika, le plus grand effondrement de pergélisol connu https:// 2tout2rien.fr/le-cratere-de-ba tagaika-
The Batagaika crater in Siberia, near the village of Batagay in Russia's Sakha Republic, is the largest known permafrost collapse on Earth. The thawing megaslump, worsened by deforestation and climate change, releases stored carbon dioxide and methane as the frozen ground melts. Posts highlighting the crater are drawing attention to the pace of permafrost degradation and its greenhouse gas implications.
- 8NOAA Partners with Canadian Scientists on Marine Carbon Removal▼Collaborating with Canadian Scientists on Marine Carbon Dioxide Removal Research
NOAA Fisheries is collaborating with Canadian scientists on research into marine carbon dioxide removal, an emerging approach that explores how ocean processes could be used to store carbon and reduce atmospheric CO2. The work reflects growing interest in ocean-based climate solutions and cross-border scientific cooperation, as governments seek methods beyond emissions cuts to meet climate targets.
- 9Permafrost and wetland emissions could amplify climate change by 30%▼Permafrost, wetland, wildfire and freshwater emissions could amplify climate change by up to 30%, study finds
A new study finds that emissions from permafrost thaw, wetlands, wildfires and freshwater systems could amplify climate change by up to 30%, over and above human-caused emissions. These natural feedback loops release additional carbon dioxide and methane as the planet warms, meaning current climate models may underestimate future warming. Researchers warn this strengthens the case for faster emissions cuts.
- 10EU auctions 2.792 million carbon permits at 84.31 euros▼European Union auctions 2.792 mln spot carbon permits at 84.31 eur/t
The European Union has auctioned 2.792 million spot carbon allowances on its emissions trading scheme at a clearing price of 84.31 euros per tonne. The auction supplies companies covered by the EU ETS with permits to emit carbon dioxide, and the price level is being tracked as an indicator of the cost of polluting in Europe.
- 11Colloquium examines Syukuro Manabe's climate modeling legacy●Colloquium : Manabe’s legacy of simulating and understanding global warming
A new colloquium from the American Physical Society reviews the scientific legacy of Syukuro Manabe, whose pioneering computer simulations laid the foundation for modern understanding of global warming. The review highlights how his early climate models established the link between rising carbon dioxide and planetary temperature, work that earned him the Nobel Prize in Physics and continues to shape climate research.
- 12Measuring CO2 levels as a proxy for indoor air safety●To those who measure CO₂ as proxy for clean air in public places: Have you observed any change in CO₂ levels in retail/o
People in the COVID-cautious community are asking whether carbon dioxide readings in retail stores, offices, libraries, healthcare and government buildings have changed compared with five years ago. CO2 monitors are used as a proxy for ventilation quality and infection risk. The discussion is inviting comparisons of indoor air quality over time, with concern that ventilation improvements made during the pandemic may not have been sustained.
- 13Philippines steps up fight against methane and HFCs▼# Philippines The Philippines is stepping up efforts to curb methane, black carbon and hydrofluorocarbons (HFCs) as part
The Philippines is intensifying efforts to cut methane, black carbon and hydrofluorocarbons as part of its goal to reduce and avoid greenhouse gas emissions by 75 percent under its 2026 Nationally Determined Contribution. The move targets potent short-lived climate pollutants alongside carbon dioxide, aligning the country with international climate commitments.
- 14Paper questioning CO2's role in climate change retracted●‘Hot mess’ paper questioning CO2 and # climate change gets retracted – Retraction Watch https:// retractionwatch.com/202
A scientific paper questioning the role of carbon dioxide in climate change has been retracted, according to Retraction Watch, which described the work as a 'hot mess'. The retraction adds to ongoing disputes over flawed or contrarian research on climate science, with observers noting scrutiny of how such papers pass peer review before being withdrawn.
- 15Blue pigment catalyst converts CO₂ directly into methane▼New potential for mitigating climate change: blue pigment catalyst turns CO₂ directly into methane i
Researchers have developed a blue pigment-based catalyst that converts carbon dioxide directly into methane, offering a new potential pathway for mitigating climate change. The approach could turn a major greenhouse gas into a usable fuel source, drawing attention as scientists search for practical carbon capture and utilisation technologies.
- 16EU auctions 2.792 million spot carbon permits at 82.6 euros▼European Union auctions 2.792 mln spot carbon permits at 82.6 eur/t
The European Union auctioned 2.792 million spot carbon permits under its emissions trading system at a clearing price of 82.6 euros per tonne. The sale is part of the EU's regular ETS auctions, which price the right to emit carbon dioxide for power companies and industry. Market watchers track the auction results as a signal of carbon price direction.
- 17Paper questioning CO2's role in climate change retracted▼‘Hot mess’ paper questioning CO2 and climate change gets retracted
A scientific paper that questioned the role of carbon dioxide in climate change has been retracted, with critics having reportedly described it as a 'hot mess'. The retraction was reported by Retraction Watch. Retractions of papers challenging the mainstream scientific consensus on climate change tend to draw significant attention, as they raise questions about peer review standards and how journals handle contested research on CO2 and global warming.
- 18Snowman Group Plans to Expand Natural Refrigerants Business●Snowman Group Plans to Grow Its Natural Refrigerants Business
Snowman Group has announced plans to grow its natural refrigerants business, a segment covering climate-friendly cooling agents such as ammonia, carbon dioxide and hydrocarbons used in refrigeration and air conditioning. The company says it sees demand rising as industries move away from synthetic refrigerants with high global warming potential. Details on investment size or timeline were not given in the initial report.
- 19Arctic permafrost thawing and releasing heat-trapping gases▼Arctic permafrost is thawing and leaking heat-trapping gas into the atmosphere
Arctic permafrost is thawing and releasing heat-trapping greenhouse gases such as methane and carbon dioxide into the atmosphere, adding a new driver of global warming. Scientists warn the process could create a feedback loop: warming temperatures melt more permafrost, which releases more gas, which accelerates warming further.
- 20Ocean Visions Launches Marine Carbon Dioxide Removal Platform▼Ocean Visions Launches New Marine Carbon Dioxide Removal Knowledge Platform
Ocean Visions has launched a new knowledge platform dedicated to marine carbon dioxide removal, bringing together research and information on ocean-based approaches to removing CO2 from the atmosphere. The resource is aimed at scientists, policymakers and others tracking emerging mCDR techniques such as ocean alkalinity enhancement and seawater carbon capture.
- 21New 'CO2caine' T-shirt Labels Fossil Fuel Use an Addiction●Women’s CO2caine T-shirt A T-shirt from our Scientist and Philosopher range. The first in our CO2caine series. The human
A new women's T-shirt from the Scientist and Philosopher clothing range has been released, branded with the word 'CO2caine'. It is described as the first in a series drawing a parallel between carbon dioxide emissions and drug addiction, arguing that humanity is addicted to burning fossil fuels to the detriment of life on Earth.
- 22New material promises boost for carbon capture technology●New material provides boost to carbon capture technologies
A newly developed material could make carbon capture technologies more efficient, according to a report by Tech Xplore. The advance may help industrial plants and direct-air capture systems remove carbon dioxide more cheaply and effectively. Details of the material's composition and performance have not yet been widely reported, but the finding adds to growing efforts to scale up carbon removal.
- 23Philippines seeks $5 million UN fund to fight super pollutants●PH targets $5-M UN fund to tackle ‘super pollutants’
The Philippines is targeting a $5-million United Nations fund to address so-called super pollutants, highly potent greenhouse gases such as methane and hydrofluorocarbons that warm the planet far faster than carbon dioxide. Accessing the fund would help the country finance measures to cut these emissions. The move highlights growing attention in Southeast Asia on short-lived climate pollutants as part of wider climate action efforts.
- 24Ocean Visions Launches Marine Carbon Dioxide Removal Knowledge Platform▼Ocean Visions Launches Comprehensive Knowledge Platform on Marine Carbon Dioxide Removal
Ocean Visions has launched a comprehensive knowledge platform dedicated to marine carbon dioxide removal, a set of ocean-based approaches to capturing and storing carbon. The platform is intended to consolidate research, data and resources on topics such as ocean alkalinity enhancement and seawater carbon removal, making scientific information more accessible to researchers, decision-makers and the public as interest in ocean climate solutions grows.
- 25Camp JORI unveils solar array cutting costs and emissions▼Camp JORI: New solar array generates savings, cuts CO2 emissions
Camp JORI has installed a new solar array that is generating cost savings and reducing carbon dioxide emissions, according to a report in The Jewish Voice of Rhode Island. The project signals the camp's move toward cleaner energy and lower operating expenses.
- 26
New reporting highlights that the world's oceans have become 20% more acidic since 1985. The increase is driven by seawater absorbing carbon dioxide from the atmosphere, a process that threatens marine life such as corals and shellfish. The finding is renewing discussion about the pace of ocean acidification and the urgency of cutting emissions.
- 27EPA scraps power plant climate rules, claims $310 billion savings●The # EPA canceled major # Climate rules for power plants and says the rollback will save $310 billion. Its own projecti
The EPA has canceled major climate rules for power plants, saying the rollback will save $310 billion. The agency's own projections show the move will add 406 million more metric tons of carbon dioxide emissions in 2035. The EPA is also seeking to remove the legal finding that underpinned the rules, drawing criticism from climate advocates.
- 28Forests lose ability to absorb CO₂ without water, research finds●Without water, forests lose their ability to absorb CO₂ https:// theconversation.com/without-wa ter-forests-lose-their-a
A new piece in The Conversation explains that when forests face water stress, they close their stomata to conserve moisture, and in doing so they stop drawing in carbon dioxide, cutting the trees' capacity to act as a carbon sink. The finding is being shared among ecology and climate science readers, underlining how drought weakens one of the planet's main natural defences against rising emissions.