Articles tagged with Carbon Emissions
A new study reveals Iceland's potential to become a protein self-sufficient nation, producing hundreds of thousands of tonnes of biomass while mitigating over 700 million tons of CO2 emissions. This could significantly reduce Europe's reliance on imported protein-rich feed crops and enhance food security.
A new study finds that autonomous vehicles could consume enough energy to generate significant greenhouse gas emissions, highlighting the need for rapid advancements in hardware efficiency. To mitigate this, researchers recommend more efficient autonomous vehicles with smaller carbon footprints.
Researchers found that natural gas-fired power plants could emit up to 3.6 billion tonnes of CO2 annually, but reducing this by 71% is possible with efficient technologies like carbon capture and storage and improving plant efficiency.
A study by UC Davis Health researchers found that telehealth visits saved patients around 53.7 million miles of travel, eliminated the need for 42.4 injuries and 0.7 fatalities, and reduced greenhouse gas emissions by 21,466 metric tons over two years.
A new study finds that tropical forests recovering from logging are a source of carbon due to soil and rotting wood releasing more carbon than new growth can absorb. The study highlights the need for sustainable logging practices to minimize collateral damage.
Researchers uncover ancient manufacturing strategy that incorporates self-healing functionalities into Roman concrete. Hot mixing process allows for faster construction and enhanced durability through spontaneous cracking and recrystallization.
A new study reveals that New York City's vegetation absorbs up to 40% of the city's daily carbon emissions, outperforming transportation sources. The research uses hyper-local vegetation maps and fine-grained modeling to show that urban greenery plays a crucial role in the city's carbon cycle.
A group of scientists developed a machine learning approach to predict amine emissions from a carbon capture plant. They analyzed data from a stress test at a German power plant and found that two amines respond in opposite ways, increasing or decreasing emissions. This new method has the potential to change the way chemical plants ope...
Researchers develop AI model to predict exhaust gas emissions from ships under different air-to-fuel ratios. The ensemble dataset and double ensemble models produce the most accurate emission predictions for CO2, NOx, and SO2 gases.
Researchers have developed a new method for recycling high-density polyethylene (HDPE) into fully recyclable and biodegradable material. The approach uses catalysts to cleave polymer chains, reducing carbon emissions and pollution associated with HDPE.
The Inflation Reduction Act offers significant benefits for public health through its tax credits and financial incentives. The law aims to reduce the adverse health effects of climate change by targeting greenhouse gases, conventional air pollutants, and carcinogenic chemical contaminants. By providing a more politically feasible appr...
A team led by Professor Thorsten Hoffmann uses small, portable observation drones equipped with miniaturized sensors to analyze volcanic gases and predict eruptions. The ratio of carbon dioxide levels to sulfur dioxide can reveal the likelihood of an impending eruption.
A study suggests that subsidies for carbon dioxide removal should be higher than the price on carbon emissions due to economic leakage. This is because ambitious countries reducing emissions can lead to other countries increasing their emissions, reducing overall emissions reduction. In contrast, carbon dioxide removal does not affect ...
The article discusses how the Inflation Reduction Act's hydrogen production tax credit could backfire by increasing carbon pollution without proper implementation. To mitigate this, researchers suggest enforcing additional guidelines for clean energy procurement alongside the tax credit.
Research by Cornell University reveals that biodegradable medical gowns release harmful emissions due to faster decomposition rates. The study suggests adopting landfill gas capture and utilization processes to reduce greenhouse gas emissions and toxicity.
Researchers at ETH Zurich investigate carbon-neutral production of nitrogen fertiliser, finding a transition is possible and may increase food security. However, alternative methods have advantages and disadvantages, with the key to success likely being a combination of approaches.
A Nagoya University study found that increased use of pharmaceuticals and medical supplies during the COVID-19 pandemic contributed to a 27% increase in hospital carbon emissions. Despite reduced electricity and gas consumption, the overall carbon footprint rose due to longer hospital stays and increased intensive care needs.
A team of researchers at KAUST has developed a new method to replace toxic chlorinated solvents with plant-derived alternatives in organic solar cell manufacture. The study reveals that terpene-based solvents can be used without affecting the light-capturing performance of the cells, resulting in an 85% lower carbon footprint.
The global food system exerts significant pressure on the environment and climate, with five countries accounting for almost half of the impact. Locally produced food is often the most environmentally friendly option, but production methods can vary greatly between countries.
Researchers at UIC have created an integrated system that captures carbon dioxide from flue gas and converts it to high-purity ethylene, achieving net-negative carbon emissions. The system's modular design allows for easy scaling up and down, making it a potential breakthrough in sustainable ethylene production.
A new analysis led by Dr. Asaf Tzachor finds that replacing beef with Spirulina algae can save nearly 100kg of greenhouse gas emissions, 340 square meters of land and 1,400 liters of water for every kilogram of beef meat replaced.
A quarter-mile segment of the Klamath Geo Trail was successfully resurfaced using volcanic ash from Mount Mazama, demonstrating its potential as a more sustainable and locally sourced pozzolan. The surface treatment improved firmness and stability, making it accessible to people with mobility devices.
Research in tropical forests reveals that nitrogen-fixing trees are vulnerable to herbivory by insects, limiting their growth and survival. This constraint could undermine reforestation efforts and the role of these trees in sequestering carbon dioxide from the atmosphere.
Research found that widespread electric vehicle adoption will significantly reduce air pollution and associated mortality in US metropolitan areas, with Los Angeles projected to see 1,163 fewer premature deaths annually. Electric vehicles could bring up to $12.61 billion in economic health benefits by 2050.
A new study by the University of East Anglia highlights the risks of relying on nature-based solutions, such as forests and soils, to achieve net-zero emissions. The research warns that these solutions may not be enough to offset the remaining difficult-to-decarbonize emissions if progress on reducing fossil fuel use stalls.
A KAUST research team studied the interaction between nitrogen gas and hydrocarbons in oil reservoirs. They found a direct correlation between nitrogen solubility and oil swelling, enhancing oil recovery. The study also sheds light on CO2 storage with impurities like methane and nitrogen.
Researchers at Rutgers University simulated climate change's impact on allergenic pollens, finding significant increases in airborne pollen loads by 2050. The study predicts earlier start times and longer durations for pollen seasons across the US, with notable regional shifts.
Ethereum's shift from proof-of-work to proof-of-stake has significantly reduced its energy requirements. This change offers a model for other cryptocurrencies to follow and reduce their environmental impact. Policymakers and consumers can support this move by implementing policies such as carbon-disclosure requirements and environmenta...
A new portable device can detect the low-intensity light emission from healthy plants, allowing researchers to measure their health and sustainability. This technology can help assess the impact of CO2 emissions, greenhouse gases, and extreme weather events on plant stress and inform strategies for sustainable agriculture.
A new study published in AGU Advances found that post-lockdown auto emissions rebounded in some California areas, with affluent neighborhoods experiencing less pollution drop. The researchers used mobile laboratory data and analyzed grass samples to track CO2 levels and found significant differences between regions.
Researchers at the University of Bern have developed a new method to determine necessary emission reductions on a continuous basis. The AERA algorithm adjusts CO2 emissions according to latest temperature data, enabling more precise calculations.
A new MIT study suggests that prioritizing polluting power plants in times of wind energy generation could quadruple the health benefits associated with wind power, resulting in $8.4 billion in nationwide health benefits. However, this approach would not address existing disparities in air pollution exposure among low-income and minori...
A team of WPI researchers has developed a potential breakthrough in green aviation: a recipe for a net-zero fuel for planes that pulls carbon dioxide out of the air. The fuel, made from magnesium hydride and hydrocarbon, could provide up to 8% more range than traditional jet fuel.
A research team at Lund University has successfully used mirrors to enhance light interaction with antenna complexes in photosynthesis. This breakthrough could lead to more efficient energy transfer processes and eventually be used to produce fuel from carbon dioxide, a promising solution for the climate crisis.
A new study estimates the cost of a green transition in greenhouse gases, finding that building renewable infrastructure generates significant carbon emissions. However, speeding up the transition could dramatically decrease these emissions and limit warming to 2 degrees or even 1.5 degrees.
A new study finds that transitioning to a low-carbon energy system could lead to significant global emissions, consuming much of the remaining carbon budget. The average emissions associated with decarbonization amount to 195 gigatonnes of CO2, equivalent to 0.1°C of additional global warming.
A new study reveals that adopting high-yielding dairy cattle breeds and improving feed can help Tanzania increase milk production while reducing planet-warming greenhouse gas emissions and alleviating poverty. The research found that better feed can increase milk yield by up to 179% and improve the country's climate commitments.
A new study documents the central role of Arctic vegetation in warming for the first time. The researchers found that different types of vegetation have varying effects on surface energy conversion, with dry areas producing greater warming than wet areas.
A new project at Aarhus University aims to develop Denmark's first reactor for carbon-negative hydrogen production from biogas using catalytic pyrolysis. The technology converts captured CO2 into solid form while producing hydrogen, reducing energy consumption by one-fifth compared to green hydrogen production.
Global carbon emissions have reached a record high, with no indication of a decline to limit global warming to 1.5°C. The Global Carbon Project projects total global CO2 emissions of 40.6 billion tonnes in 2022, fueled by fossil CO2 emissions that are projected to rise 1.0% compared to 2021.
Researchers at Argonne National Laboratory have identified promising new biofuels that can reduce greenhouse gas emissions by up to 60% while improving fuel efficiency or reducing tailpipe emissions. The biofuels, developed using advanced engine design, can be blended with conventional fuels to improve engine performance and meet more ...
New research suggests that the world will probably warm beyond the 1.5-degree limit set by the 2015 Paris Agreement, but peak warming can be minimized by adopting more ambitious climate pledges and decarbonizing faster. The study models scenarios to explore what degree of warming would likely follow different courses of action, highlig...
A Stanford-led study found that cover cropping in the US Corn Belt leads to yield losses of 5.5% for corn and 3.5% for soybeans, despite its potential climate benefits. The practice's environmental impacts are complex, with reduced runoff and soil erosion but also increased water usage.
Aston University scientist Dr Maria Pimenta da Costa Ocampo provides tailored low-carbon advice to clothes designer Debbie Murphy of Missfit Creations. The advice helps reduce carbon emissions by analyzing the recirculation of second-hand clothes, achieving CO2 equivalent of three tonnes.
A new ceramic material with excellent oxygen storage capacity has been developed by Tohoku University researchers. The material can remove toxic gases from exhaust emissions at lower temperatures than current materials, making it a promising solution for improving air quality in petrol and diesel vehicles.
The discussion focused on the impact of ocean acidification, compound events, sea-level rise, and climate injustice, with experts highlighting the need for youth involvement in decision-making. The panel agreed on the urgent need for climate action ahead of COP27, emphasizing cooperation between nations to mitigate the crisis.
A recent study by University of Cologne researchers found that the public is more willing to support costly climate policies if other countries contribute as well. This increased willingness is due to individuals expecting these efforts to be fairer and more effective. The team surveyed over 10,000 citizens in four countries and discov...
Researchers from Ulsan National Institute of Science and Technology (UNIST) demonstrate a feasible waste plastic pyrolysis model, increasing profitability and reducing CO2 emissions compared to centralized processes. The study also found significant decreases in transportation costs and related emissions.
A simple material called aluminum formate has been found to be effective in removing carbon dioxide from power plant smokestacks. The material, made from abundant and readily available chemicals, is up to 100 times less expensive than other materials with similar performance.
The Congo peatlands, the world's largest tropical peatland complex, are fragile and vulnerable to drought. If modern-day global heating produces droughts in the region, they could release up to 30 billion tonnes of carbon, accelerating climate change.
Researchers at KAUST developed an inverse mixture-design approach using machine learning to create high-performance transport fuels. The model accurately predicted fuel properties and identified suitable blends, offering a promising solution to reduce greenhouse gas emissions.
A study by researchers at ICES, Lawson Health Research Institute, and Western University found that virtual care during the pandemic led to significant environmental and patient cost savings. Virtual visits represented approximately 0.2% of total annual carbon dioxide emissions in Ontario and estimated $63 million in patient cost savings.
The study forecasts cumulative emissions from the 'country of permafrost' through 2100 under low, medium, and high warming scenarios. Under a low warming scenario, permafrost would release 55 petagrams of carbon by the end of the century, while potentially releasing 232 Pg if left unchecked.
Researchers predict that reduced Ukrainian grain exports due to the war will lead to increased food insecurity and higher carbon dioxide emissions. The study estimates a potential increase in global agricultural land use of 16.3-45 million acres, driving up carbon emissions by 527-1.6 billion metric tons.
A two-year research project aims to overcome technical difficulties in large-scale algae cultivation, a promising method for climate change mitigation. The ROBA project focuses on developing economically feasible algal cultivation processes using advanced measurement technologies and bioprocess engineering.
Mathematicians at Aston University are developing computational modelling techniques to examine biological drag reduction methods, such as fish slime secreted by predator-avoiding fish. This project aims to reduce skin-friction drag and increase the performance range of electric vehicles, contributing to a reduction in CO2 emissions.
A new study by the University of Nebraska-Lincoln suggests that Brazil can increase its soybean production by 36% by 2035 while reducing greenhouse gas emissions by 58% and eliminating deforestation. The strategy involves intensifying crop yields, growing a second crop on soybean fields, and raising more cattle on smaller pastures.
A new system developed at the University of Waterloo can affordably convert CO2 into fuels and valuable chemicals. The technology yields 10 times more carbon monoxide than existing methods, making it economically viable for industrial-scale use.
The researchers used a new technique to capture the first cross-sectional images of carbon dioxide in the exhaust plume of a commercial jet engine. The images show a ring-structure of high carbon dioxide concentration and a raised region in the middle of the plume.
The article analyzes Bitcoin mining's environmental costs and finds them to be more comparable to beef production than gold or natural gas. Climate damages from Bitcoin mining have increased 126-fold since 2016, with estimated damages of over $12 billion annually.