Articles tagged with Carbon Emissions
A new study by the Smithsonian Tropical Research Institute reduces uncertainty in predicting carbon dioxide release from deforestation scenarios. It highlights the capacity of young, regenerating or secondary forests to pull greenhouse gas from the atmosphere, suggesting that these forests can store up to 15% of Panama's national carbo...
A team of OSU scientists has created a new technology that can scrub carbon dioxide from industrial emissions and convert it into valuable materials. The innovative Lanthanide Metal-Organic Frameworks (LMOF) system uses CO2-rich gas conditions to produce functional materials with diverse applications.
Researchers at West Virginia University aim to develop more precise predictions about the role of individual soil microorganisms in the carbon cycle. They will use stable isotope probing to track carbon uptake and characterize the function of microbes in their natural communities.
Researchers from the University of Oxford investigated the behavior of CO2 within a depleted hydrocarbon reservoir in Louisiana, USA. They found that up to 74% of CO2 was dissolved in groundwater, while microbial methanogenesis converted 13-19% of the injected CO2 to methane.
A study of nearly 35,000 routes found that traffic speeds under 20mph are most likely to encourage cycling, with higher speeds deterring commuters. The research also highlights the importance of cycle paths and separates roads for encouraging more cycling.
A study by Yale University found that electric vehicles provide lower carbon emissions due to indirect emissions from the supply chain of fossil fuel-powered vehicles. The study suggests that pricing indirect emissions can accelerate the low-carbon transition of the US light vehicle sector.
A recent study suggests that climate change in some regions is unavoidable even if CO2 levels are reduced. The intertropical convergence zone (ITCZ) shifts southwards when CO2 decreases, triggering persistent El Niño conditions and regional climate changes.
A recent study found that major US electric utility companies' voluntary climate pledges could lower net emissions by roughly 560 million metric tons of CO2 equivalent, an amount equal to one-third of 2018 US power sector emissions. This reduction is on top of existing policies and could play a vital role in climate change mitigation.
A new study by Cornell University found that moving professional conferences online reduces the global event industry's carbon footprint by 94%, and shifting to a hybrid model cuts it to 67%. The annual carbon footprint of the industry is comparable to the yearly greenhouse gas emissions of the entire US.
A simplified mathematical model found a 'lag time' between human intervention and an actual decrease in CO2 levels, which could still lead to climate tipping points. The researchers used a system of stochastic delay differential equations to analyze various emission reduction and carbon capture strategies.
Researchers from Japan have developed a new method to synthesize a pure Si-CHA membrane showing much higher CO2 separation performance than existing membranes. The key to this achievement is using a porous silica substrate instead of alumina, eliminating problems with pore size reduction and improving efficiency.
Researchers at UC Berkeley propose creating a market for small diameter trees and woody biomass to reduce wildfire risk while limiting carbon emissions. By investing in innovative wood products, the state can achieve both net carbon benefits and wildfire mitigation benefits.
Researchers at the University of Edinburgh propose a new semester schedule that can reduce CO2 emissions by 167 tonnes, 4.2%, by starting a new semester on September 12 and extending the winter vacation period. This approach could be adapted for other universities globally.
A previously unknown source of the potent greenhouse gas nitrous oxide has been found in East Siberian Yedoma permafrost. The discovery highlights the significance of thawing permafrost as a globally important positive feedback to climate change.
A $19 million research project will investigate the connection between grazing management decisions and soil health, aiming to improve soil resilience and productivity. The project, led by Noble Research Institute, will provide farmers and ranchers with tools to measure outcomes of soil health in grazing land environments.
A study estimates that 55% of organic matter removed during wastewater treatment is refractory, leading to high greenhouse gas emissions. The researchers propose a new perspective on carbon neutrality in the industry by leaving non-toxic recalcitrant organic matter in the wastewater.
A study by Universitat Autonoma de Barcelona found that spending revenues on climate projects increases social acceptability of carbon taxes. The research also revealed that providing information on carbon taxes can increase acceptability, while the perception of fairness is a stronger factor in acceptability than effectiveness.
The state of Georgia could dramatically reduce its greenhouse gas emissions by using onsite electric power, creating new jobs and a healthier public. CHP systems can be 85-90% efficient, reducing peak demand on the grid and providing ultra-high system efficiencies, cleaner air, and more affordable energy.
The global plastics supply chain has a significant impact on the climate, with production accounting for 96% of total greenhouse gas emissions. The use of coal-based energy in plastic production is driving this growth, with emissions quadrupling since 1995 and causing health issues like air pollution and asthma.
A new study led by the University of Pittsburgh reveals that 360 million metric tonnes of new plastic were produced in 2018, with only 9% being recycled. The research found that the greenhouse gas emissions associated with plastic production are staggering, accounting for 350 million metric tonnes of CO2 equivalent.
Researchers at MIT created a computational tool to minimize embodied carbon in truss structures by choosing between timber and steel. The analysis suggests that substituting materials or changing the structure can significantly reduce emissions, with potential savings of up to two times current levels.
A study published in Frontiers in Energy Research found that sustainable aviation fuel (SAF) could reduce commercial aviation's CO2 emissions by between 4% and 23% by 2050. The researchers used a model-based approach to analyze data and considered five future SAF scenarios and two passenger-demand projections.
A new international study by IIASA reveals that rapid emissions cuts in the next few decades can avoid temperature overshoot, plateauing global temperatures around the time of net-zero emissions. This approach also yields long-term economic benefits, with projected GDP increases of up to 2% in scenarios that avoid overshoot.
A recent study by NTU Singapore has found a strong link between increasing air pollution and the rise of lung adenocarcinoma, a type of cancer. The study also discovered that declining smoking rates are associated with lower incidence of lung squamous cell carcinoma.
By 2050, renewable electricity is expected to become the cheapest form of energy globally, accounting for up to three-quarters of all demand. This shift can be achieved through accelerated electrification of industries, such as steel production and transportation, which can reduce energy consumption and lower carbon intensity.
A team of scientists from GIST developed an AI-based approach to analyze and extract user behavior data, estimating the optimal demand response management for each household. The study showcases how AI can improve electricity consumption, leading to lower prices and a smaller carbon footprint.
A study at the University of Plymouth found that retrofitting an existing building with a green wall reduced heat loss by 31.4%. The study suggests that living walls can provide significant energy savings and help reduce carbon emissions in existing buildings.
A Berkeley Lab study shows how battery-electric trains can cut carbon dioxide emissions by over half, eliminating premature deaths and health costs associated with diesel freight trains. The analysis suggests that retrofitting diesel-electric trains with batteries is a cost-effective solution with multiple benefits.
A new study found that providing free green electricity and public transport can reduce home energy emissions by 13.4% and motor fuel emissions by 23.8%. This approach is more effective than redistributing carbon tax revenue among the population to address poverty.
Researchers at Cornell University developed a novel method to track microbes and understand their role in processing soil carbon. The study found that different types of bacteria have varying strategies for assimilating carbon, categorized into guilds based on their access to food.
Researchers at Singapore University of Technology and Design found that adding carbon emission labels can influence online shoppers to choose more sustainable shipping options. The study showed that slow shipping options result in lower emissions but longer delivery times, with an 81% reduction in emissions possible.
A study by Technical University of Munich found that major tech companies significantly underreported CO2 emissions from their value chain, with 50% of emissions omitted in 2019. The researchers developed a method to identify reporting gaps and estimated the omitted emissions at 751 megatons carbon dioxide equivalents.
Researchers from Swiss Federal Laboratories for Materials Science and Technology (EMPA) propose a radical approach to accelerate the energy transition. By using fossil power plants at full capacity and building solar infrastructure, they aim to minimize cumulative CO2 emissions and complete the energy transition within five years.
Researchers at Lawrence Berkeley National Laboratory have developed a new approach to modify the surface of copper catalysts, improving the conversion of carbon dioxide into useful fuels. The technique involves coating the copper with thin films of ionomers, which steer the reaction towards generating carbon-rich products.
Researchers from Australian National University warn that Australia's hydrogen strategy lacks distinction between green and blue hydrogen, which could increase emissions. Large-scale investment in fossil fuel-based hydrogen with carbon capture technology may be risky due to substantial fugitive emissions.
Concordia researcher Seth Wynes estimates that permanent adoption of lockdown-era schedules could cut carbon dioxide emissions from team travel by 22%, reducing overall annual emissions. Implementing these changes could also have co-benefits, such as reduced injuries and improved player rest.
A team of researchers at the University of Copenhagen has identified a group of proteins, called CURT1, that control the development of green leaves in plants. This discovery sheds new light on photosynthesis, which is essential for life on Earth and could lead to more efficient CO2 absorption.
Researchers tracked methane emissions from the region's 10,000 oil and gas wells, finding that they fell by half between 2015 and 2020. Despite this decline, methane leaks remained high, accounting for about six to eight percent of produced natural gas.
A new study by University of Pittsburgh researchers links econometric models with production profitability to predict the impact of demand shocks on carbon intensity. Small shocks are predicted to displace heavy crudes with higher carbon intensity, but the relation may be counterintuitive.
Researchers from NTU Singapore found significant increases in pollutant emissions at major international seaports during the COVID-19 pandemic. Emissions rose by over 100% in some ports, with container ships and dry bulk carriers experiencing the largest spikes.
Researchers predict that targeted transport measures in Cairo will reduce health-damaging pollutants by up to 55% and global warming emissions by an average of 12.4%. Better vehicle inspection and maintenance, as well as improved public transport infrastructure, are key strategies identified in the study.
Scientists at KAUST have created catalysts that can convert CO2 into valuable hydrocarbons, such as gasoline-grade isoparaffins, with high selectivity rates. The development paves the way for a circular carbon economy and drop-in fuels from CO2.
Researchers explore harnessing China's wind energy to produce carbon-free green hydrogen at a lower cost than coal-derived black hydrogen. Shifting from black to green hydrogen could reduce 100 million tons of CO2 emissions per year by 2030.
Expanding the EU's Emissions Trading System to cover road transport and heating fuels could be a cost-effective way to reduce emissions, but may affect consumers. Thoughtful policy design is crucial to relieve burdens and ensure equitable distribution of costs.
Chemists at Johannes Gutenberg University Mainz have developed a method to produce cement by milling instead of burning lime, reducing CO2 emissions. The process could be implemented on an industrial scale, but further development is needed.
A life cycle assessment of carbon capture at Amager Bakke incineration plant reveals that the technology reduces CO2 emissions from incineration but decreases electricity production by 50%. The overall net energy efficiency is not affected, but heat output increases by 20%.
A new Stanford-led study suggests that decreasing oil demand leads to larger-than-expected carbon reductions, as the impact varies depending on market factors. The research takes into account the global oil market's structure, including perfect competition, oligopoly, and cartel scenarios, to estimate climate benefits.
A group of global healthcare and tech companies has pledged to decarbonize the NHS supply chain by 2045, aiming to support the NHS's ambition to become the world's first net zero health service. The International Leadership Group for a Net Zero NHS has urged suppliers to commit to reducing their operations' carbon footprint by 2045.
A team of researchers at Texas A&M University has developed a method to turn carbon dioxide into valuable chemicals through reduction reactions. This process could provide a path to repurpose excess CO2, reducing its negative environmental impact.
A new study suggests that aviation could consume up to one-sixth of the remaining temperature budget to limit warming to 1.5°C by 2050. Reducing CO2 emissions annually is crucial to avoid further warming.
Researchers at ETH Zurich have developed a plant that can produce carbon-neutral liquid fuels from sunlight and air. The technology has been tested successfully and is now mature enough for industrial applications.
A new study highlights the need for sustainable dietary choices to reduce food-related greenhouse gas emissions. Reducing discretionary foods like sweets, pastries, and processed meats can help lower emissions, which contribute to climate change.
A new study from the University of Eastern Finland introduces an electric soot collector that achieves a 45% fine particle reduction efficiency in logwood-fired masonry heaters. The technology uses natural charges of flames to collect particles, but further optimization is needed for higher reduction efficiencies.
Researchers from the Paul Scherrer Institute found that CO2 electrolysis can produce formic acid, a promising product for various industries, but generates more CO2 than it consumes. The production process is commercially viable, but depends on a renewable energy mix to have a positive climate effect.
A University of Cambridge study reveals that periodic caterpillar outbreaks improve lake water quality but increase CO2 emissions by altering nutrient cycling and favouring greenhouse gas-producing bacteria. This phenomenon is likely to worsen as climate change expands the insects' range, threatening northern forests.
The Global Carbon Project predicts an increase of 4.9% in global carbon emissions in 2021, with fossil carbon emissions set to grow more than they fell in 2020. The report highlights the need for immediate global action on climate change as world leaders meet at COP26 in Glasgow.
A study analyzed grocery purchase records of 57,000 US households and identified three ways to reduce food-based carbon footprints: meal planning, using local produce, and reducing meat consumption. The research suggests that 71% of households can decrease their emissions by implementing these strategies.
Scientists from University of Technology Sydney developed energy-related carbon budgets for 12 main industry sectors, showing that it's still possible to limit global warming to 1.5C with timely climate action. The research provides sector-specific emission targets and a holistic model for decarbonization pathways.
International shipping's current climate targets are too lax, with emissions projected to exceed twice the level compatible with limiting global heating to 1.5 degrees. New research calls for significantly stronger targets by 2030 and zero emissions by 2050.
Researchers review strategies to enhance Cu-based catalysts' performance in CO2 reduction, including surface structure tuning and local environment regulation. The study aims to overcome current challenges and outline future opportunities for efficient CO2 conversion.