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of the human-made climate impact; two-thirds of this impact are caused by emissions other than CO 2 , according to a new study by researchers in Europe and the US. The study was published in the journal Atmospheric Environment. This new study is based on a thorough review of a decade of research on aviation emissions.
By uprooting carbon trapped in soil, wild pigs (feral swine), are releasing around 4.9 million metric tonnes of carbon dioxide annually across the globe, the equivalent of 1.1 million cars, according to a new study by an international team led by researchers from The University of Queensland and The University of Canterbury.
The gasoline direct injection (GDI) engine is one of the most prominent technologies car manufacturers adopted to achieve the fuel economy and carbon dioxide emission goals established in 2012 by the US Environmental Protection Agency. A strong absorber of solar radiation, black carbon exhibits significant climate warming properties.
The rapidly growing space industry may have a greater climate effect than the aviation industry and undo repair to the protective ozone layer if left unregulated, according to a new study led by UCL and published in the journal Earth’s Future as an open-access paper. The space industry is one of the world’s fastest growing sectors.
Some will suffer greatly from climate change, while others may even benefit. A study by University of Chicago economist Esteban Rossi-Hansberg, the Glen A. The social cost of carbon has become the standard measure to benchmark the magnitude of the carbon taxes needed to implement optimal carbon policy.
A comprehensive assessment of black-carbonclimate forcing accepted for publication in the Journal of Geophysical Research: Atmospheres estimates that black carbon, with a total climate forcing of +1.1?W?m m -2 , is the second-most important human emission in terms of its climate-forcing in the present-day atmosphere.
A new study from the International Council on Clean Transportation (ICCT) has found that although liquid-hydrogen- (LH 2 )-combustion aircraft do not perform as well as their jet fuel counterparts, they can still play an important role in meeting aviation’s 2050 climate goals. Mukhopadhaya and Rutherford (2022).
In an open-access report in the journal Environmental Pollution , researchers from UCLA and the University of Chicago estimate that California’s wildfire carbon dioxide equivalent (CO 2 e) emissions from 2020 (~127 mmt CO 2 e ) are approximately two times higher than California’s total greenhouse gas (GHG) emission reductions since 2003.
A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. gCO 2 e/MJ) which is 46% lower than the average carbon intensity for neat gasoline.
A new study led by researchers from Northwestern University projects that if electric vehicles replaced 25% of combustion engine cars currently on the road, the United States would save approximately $17 billion annually by avoiding damages from climate change and air pollution. Results show that in more aggressive scenarios—i.e.,
The same study also concluded an overall lower consumption of tobacco worldwide is statistically linked to less people contracting lung squamous cell carcinoma (LSCC)—another type of NSCLC. The results of the study were published in the journal Atmospheric Environment. LSCC is often linked to a history of smoking.
This reduction is achieved through a closed-loop carbon recycling system, which could replace 90% of the coke typically used in current blast furnace-basic oxygen furnace systems and produces oxygen as a byproduct. If implemented in the UK alone, the system could deliver cost savings of £1.28 A double perovskite, Ba 2 Ca 0.66 2023.135963.
A study by Mark Z. Jacobson, professor of civil and environmental engineering at Stanford University, suggests that carbon capture technologies are inefficient and increase air pollution. All sorts of scenarios have been developed under the assumption that carbon capture actually reduces substantial amounts of carbon.
“Blue” hydrogen—produced through steam methane reforming (SMR) of natural gas or coal gasification, but with CO 2 capture and storage—is being described as having low or zero carbon emissions. Our analysis assumes that captured carbon dioxide can be stored indefinitely, an optimistic and unproven assumption.
As part of a larger £90 million (US$117 million) package of awards to cut carbon emissions in industry and homes, the UK is awarding £28 million (US$36.5 million) to five demonstration phase projects for low-carbon hydrogen production. HyNet – low carbon hydrogen plant. This funding will enable further engineering studies.
In addition to its regional and temporal scope, this study is distinct from earlier LCA literature in four key aspects: This study considers the lifetime average carbon intensity of the fuel and electricity mixes, including biofuels and biogas. This is especially important for assessing the GHG emissions of PHEVs.
The COVID-19 pandemic has significantly affected both consumer and commercial transportation, but global oil demand will probably continue to grow through 2030, according to a new study. Lines represent global oil demand by study scenario. C temperature rise along the net zero carbon trajectory.
A new University of Michigan study finds that making the switch to all-electric mail-delivery vehicles would lead to far greater reductions in greenhouse gas emissions than previously estimated by the US Postal Service (USPS). million metric tons of carbon dioxide equivalents when compared to the ICEV scenario. Earlier post.).
Due to the rapid economic growth in the study period, China invested a large amount of resources into infrastructure construction for advancing the urban living environment. Of the 841 cities studied, 325 showed significant greening with more than 10% of greening BUAs. billion and the urban population was 4.2
there is substantial variation in emissions based on where and when a vehicle is charged and operated, due to the impact of ambient temperature on fuel economy and the spatiotemporal variability in grid carbon intensity across the United States. This is an important study to inform and encourage climate action. Resources.
New research led by Mohammad Masnadi, assistant professor of chemical and petroleum engineering at the University of Pittsburgh Swanson School of Engineering, offers a closer look at the relationship between decreasing demand for oil and a resilient, varied oil market—and the carbon footprint associated with both. Masnadi, M.S.,
A recent report from CE Delft, an independent research and consultancy organization, regarding the climate impact of Exhaust Gas Cleaning (EGC) systems for the marine industry. The study compares the results to the use of low-sulfur marine fuels and is made from a well-to-wake perspective in order to achieve an accurate comparison.
earlier post ), a new study by a team at Environmental Defense Fund finds that the climate impact of hydropower facilities varies widely throughout the world and over time, with some facilities emitting more greenhouse gases than those burning fossil fuels. They also estimated emissions caused by flooding the reservoir.
Origin Materials has developed technology which turns sustainable wood residues into cost-advantaged, carbon-negative materials that reduce the need for fossil resources. The Origin platform converts C-6 cellulose into four isolated building-block chemicals in one chemo-catalytic step in liquid-phase reactors with almost zero carbon loss.
Black carbon particles absorb heat in the atmosphere. For years, scientists have known that these particles are affecting Earth’s warming climate, but measuring their exact effect has proved elusive. Absorption by black carbon strongly affects regional and global climate. —Fierce et al.
Now, a study by researchers at the US Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation (CABBI) has found that energy sorghum ( Sorghum bicolor ) behaves more like miscanthus in the way it efficiently captures light and uses water to produce abundant biomass. Energy sorghum falls somewhere in between.
Policies to entice consumers away from fossil-fuel powered vehicles and normalize low carbon, alternative-fuel alternatives, such as electric vehicles, are vital if the world is to significantly reduce transport sector carbon pure-emissions, according to a new study. Note the different scaling used in the graphs. McCollum et al.
To achieve goals for climate and economic growth, “negative emissions technologies” (NETs) that remove and sequester carbon dioxide from the air will need to play a significant role in mitigating climate change, according to a new report from the National Academies of Sciences, Engineering, and Medicine.
The results have important implications for Earth’s climate because methane is about 25 times more powerful than carbon dioxide when it comes to warming the planet over a long period. The study is one of the first to account for methane leaking from old, abandoned mines. Mines are getting deeper every year.
A preliminary analysis of global data has found that carbon dioxide emissions from fossil fuel sources reached a maximum daily decline of 17% in April as a result of drastic decline in energy demand that have occurred during the COVID-19 pandemic. —CSIRO researcher and Global Carbon Project Director Dr Pep Canadell. Le Quéré, C.,
A new report by the Union of Concerned Scientists (UCS) finds that the rising use of ride-hailing services is increasing carbon emissions, with ride-hailing trips producing nearly 70% greater emissions compared to the trips they are replacing. The error bars for ride-hailing represent uncertainty in the percentage of deadheading miles.
California will meet its 2030 climate targets more than three decades late, in 2061, and could be more than 100 years late in meeting its 2050 target if the average rate of emissions reductions from the past year hold steady, according to a new study tracking more than a decade of environmental and economic indicators in the state.
The open-access paper on the study is published in the RSC journal Energy & Environmental Science. The materials and metals demanded by a low-carbon economy are projected to be immense and create challenges along the full supply pathway. Process flow diagram and construction phase boundary. Palmer et al.
A study published earlier this year in the journal Nature Climate Change that cast doubt on whether biofuels produced from corn residue could meet federal mandates for cellulosic biofuels to reduce greenhouse gas emissions by 60% compared to gasoline ( earlier post ) has drawn critical response published as correspondence in the same journal.
FlyZero is the UK’s Aerospace Technology Institute (ATI) project aiming to realize zero-carbon emission commercial aviation by 2030. Funded by the Department for Business, Energy and Industrial Strategy, the project FlyZero began in early 2021 as an intensive research project investigating zero-carbon emission commercial flight.
Advocacy group Coltura has published a report that finds converting the biggest users of gasoline to EVs in the next ten years is critical to reaching climate goals and that present EV policies are poorly suited to accomplishing that conversion.
A study by a team from the International Council on Clean Transportation (ICCT) shows that state electric vehicle incentives are playing a significant early role in reducing the effective cost of ownership and driving electric vehicle sales. —Jin et al. Earlier post.). —Jin et al. electric vehicle incentives ”.
GTI has released a site-specific engineering design titled “ Low-Carbon Renewable Natural Gas (RNG) from Wood Wastes ”. The RNG product with very low carbon intensity could be used for carbon emission reductions in the transportation, industrial, commercial, and residential energy sectors. The Gasification-powered RNG Process.
Efforts to shift away from fossil fuels and replace oil and coal with renewable energy sources can help reduce carbon emissions but do so at the expense of increased inequality, according to a new study by researchers at Portland State University (PSU) and Vanderbilt University. —Julius McGee. —Julius McGee.
Fewer soot particles in the exhaust stream of aircraft reduces the formation of ice crystals and therefore the climate impact of the resulting contrail cirrus. The results are published in an open-access paper in the Nature Partner Journal (npj) Climate and Atmospheric Science. —Ulrike Burkhardt.
Steel produced by electric arc furnace (EAF) steelmakers in the US has a carbon intensity that is approximately 75% lower than traditional blast furnace steelmakers. This is the finding of an independent study of steelmakers worldwide conducted by CRU Group, a global business intelligence firm specializing in metals manufacturing.
It is a strategy rooted in cross-cutting research and engineering to enable industry stakeholders, communities, government agencies, and early adopters to meet their climate goals. The transportation sector is the largest source of greenhouse gas emissions in the United States, accounting for about 28% of total carbon emissions.
Canada Nickel Company announced that its latest test work results support the incorporation of carbon capture and storage into the Crawford Project.The company’s In-Process Tailings (IPT) Carbonation process is a novel method for accelerated carbon capture and storage. IPT Carbonation – Crawford Nickel Project.
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