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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.
A new NOAA study covering four decades of tropical cyclones found that reducing particulate air pollution in Europe and North America has contributed to an increase in the number of tropical cyclones in the North Atlantic basin and a decrease in the number of these storms in the Southern Hemisphere. Credit: NOAA.
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.
The study will appear next month in the peer-reviewed journal Climatic Change Letters. The study will appear next month in the peer-reviewed journal Climatic Change Letters. Relying more on natural gas would reduce emissions of carbon dioxide, but it would do little to help solve the climate problem.
Air pollution in India resulted 1.67 million deaths in 2019—the largest pollution-related death toll in any country in the world—and also accounted for $36.8 The 2019 death toll attributed to air pollution in India accounted for 17.8% Pollution takes an enormous human toll in India. It is causing 1.67
An international team of scientists, led by NTU Singapore, has linked increased air pollution to an uptick in cases of lung adenocarcinoma (LADC) worldwide. The results of the study were published in the journal Atmospheric Environment. Black carbon is a pollutant that is classified as under PM 2.5. micrograms per cubic meter (?g/m
A new study finds that environmental damage caused by corn production results in 4,300 premature deaths annually in the United States, representing a monetized cost of $39 billion. Production-weighted national average human mortality per million tonnes of maize produced, by pollutant and supply chain stage. a, Absolute mortality.
Diesel generators release greenhouse gases, particulate matter (PM), volatile organic compounds (VOCs), nitrous oxides (NO x ) and sulfur dioxide (SO 2 ), harmful pollutants that create smog and exacerbate respiratory conditions. Emissions from these backup generators can harm local residents, regional air quality and the global climate.
In early 2013, the Chinese government declared a war on air pollution and began instituting stringent policies to regulate the emissions of PM 2.5. pollution is falling, harmful ground-level ozone pollution is on the rise, especially in large cities. Over the course of five years, PM 2.5 Resources.
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 team of researchers, led by Professor Gavin Shaddick at the University of Exeter, has shown that, despite global efforts to improve air quality, half of the world’s population is exposed to increasing air pollution. An open-access paper on the research is published in the journal Climate and Atmospheric Science. (a)Map Shaddick, G.,
Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. In addition to nitrogen dioxide, one of the new studies finds PM 2.5 Bauwens et al.
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. However, this research finds that it reduces only a small fraction of carbon emissions, and it usually increases air pollution.
A study by a team of researchers from China, the US and Germany suggests that future climate change may worsen air quality for more than 85% of China’s population, leading to an additional 20,000 deaths each year. Managing air quality in China in a changing climate will thus become more challenging. —Hong et al.
Emissions from farms outweigh all other human sources of fine-particulate air pollution in much of the United States, Europe, Russia and China, according a new study published in Geophysical Research Letters , a journal of the American Geophysical Union. A 2015 study in the journal Nature estimates they cause at least 3.3
The research, published in a recent issue of Nature Geoscience , provides evidence of how aerosols—soot, dust and other small particles in the atmosphere—can affect weather and climate. Authors of the new study include Prof. In polluted air, more and smaller drops are formed. —Prof. Daniel Rosenfeld.
A team of researchers from the University of California, Berkeley; University of North Carolina, Chapel Hill; and University of Miami has analyzed the implications of California’s Clean Vehicle Rebate Project (CVRP) for emissions of greenhouse gases and criteria air pollutants, both in aggregate and in their distribution. Mejia-Duwan et al.
Pollution warms the atmosphere through summer thunderstorm clouds, according to a computational study by a team of researchers from Pacific Northwest National Laboratory (PNNL), Hebrew University in Jerusalem and the University of Maryland published in Geophysical Research Letters. —Fan et al. —Jiwen Fan.
The results of the study were published in the Journal of the Association of Environmental and Resource Economists. The study, set in Singapore, suggests that better air quality will bring about climate co-benefits in reducing electricity generation via lower household demand, and thus mitigating carbon emissions.
Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. The annual averages of ozone levels in study areas were between about 10 and 25 ppb.
pollution shortens human lives by more than a year, according to a new open-access study from a team of environmental engineers and public health researchers published in the ACS journal Environmental Science & Technology Letters. This study marks the first time that data on PM 2.5 Source: Apte et al. —Joshua Apte.
A new study has found that pollutant particles carried by these flows prefer to accumulate in specific regions of the urban environment and even form coherent structures, rather than scattering randomly. In previous studies, the existence of these patterns in fluid flows was only verified with idealized “theoretical” flows.
Pollution is making Arabian Sea cyclones more intense, according to a study in the journal Nature. Because of the large-scale dimming by ABCs, they have a mitigating effect on the warming of the ocean in the region that’s also associated with greenhouse gas-driven climate changes. The other co-authors of the study are James P.
Air quality in the US may be linked with increased mortality and reduced life expectancy according to new research from Imperial College London and the Center for Air, Climate and Energy Solutions at Carnegie Mellon University. The study, published in the journal PLOS Medicine , analyzed concentrations of PM 2.5 µg/m 3 ). At any PM 2.5
A new study by led by Nadine Unger at NASA’s Goddard Institute for Space Studies (GISS) that analyzes the net climate impacts of emissions from economic sectors rather than by individual chemical species has found that on-road transportatation is and will be the greatest net contributor to atmospheric warming now and in the near term.
Air pollution, even at levels generally considered safe by federal regulations, increases the risk of stroke by 34%, according to a new study by researchers at Beth Israel Deaconess Medical Center. Any proposed changes in regulated pollution levels must consider the impact of lower levels on public health. Writing in the 14 Feb.
A recent study by an international team calculated that shipping causes a net cooling of climate across all parametrizations of the indirect aerosol effect (IAE) and scenarios throughout the period 1900?2050. A recent study commissioned by the International Maritime Organization (IMO) estimated total emissions of 1046 Tg CO 2 yr ?1
Researchers at Columbia University, with colleagues at Boston University and Abt Associates, have identified concentration-response (C-R) functions for a number of adverse health outcomes in children associated with air pollutants largely from fossil fuel combustion. A paper on their work is published in journal Environmental Research.
In California, reductions in emissions of black carbon since the late 1980s—mostly from diesel engines as a result of air quality programs—have resulted in a measurable reduction of concentrations of global warming pollutants in the atmosphere, according to a study examining the impact of black carbon on California’s climate.
Schematic diagram of the trade-offs between the implications for regional air quality and global climate change of new policies for management of the atmosphere. The project builds upon the idea that air quality and climate change issues are linked through “one atmosphere”, an approach that demands coordination and multi-tiered approaches.
Cutting the amount of short-lived, climate-warming emissions such as soot and methane won’t limit global warming as much as previous studies have suggested, according to a new study from the Joint Global Change Research Institute in College Park, Md., —Smith and Mizrahi. —Smith and Mizrahi.
A new study by an international team of researchers using Comparative Risk Assessment methods to estimate the health effects of alternative urban land transport scenarios for two settings—London, UK, and Delhi, India—concluded that although uncertainties remain, climate change mitigation in transport should benefit public health substantially.
Scientists from the US, Norway, Russia, Germany, Italy and China are participating in a study examining the potential role of black carbon, or soot, on the rapidly changing Arctic climate. The Arctic climate is changing faster than some scientists expected. The study will run through 15 May out of Svalbard, Norway.
Policies incentivizing the private sector to push to develop innovative “clean” technologies are likely to play a key role in achieving climate stabilization. Respectively, Title IV of the 1990 Clean Air Act and the Ozone Transport Commission/NO x Budget Program.). —Margaret Taylor. c personnel and organizational innovative capacity.
The climate change benefit is estimated for 2050 and human health and crop benefits are for 2030 and beyond. Widespread implementation is achievable with existing technology but would require significant strategic investment and institutional arrangements, the study found. Click to enlarge.
Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. —Cappa et al. Earlier post.).
In the past, pollution measurement has been relatively crude in terms of compositional, spatial, and temporal resolution. There have been significant improvements in the ability to conduct granular measurement of air pollutants, and this has enabled more awareness and more focused local policy actions, as addressed below. Globally, 4.2
A “well-to-wheel” life cycle assessment (LCA) by a team from synthetic fuels producer Greyrock ( earlier post ), and the National Renewable Energy Laboratory (NREL) has determined the potential reduction of greenhouse gases and criteria pollutant emissions from the use of synthetic fuels directly converted from flare gas. billion liters (18.8
previous studies have followed the general framework of life cycle assessment (LCA), they have focused almost exclusively on quantifying the energy balance and GHG emissions associated with biofuels production. For gasoline, the study reflects the US context in which crude oil is to a large extent imported and refined domestically.
The study was published online 24 May in the ACS journal Environmental Science & Technology. The study examined the fuel-cycle CO 2 , SO 2 , and NO x emissions of EVs in China in both current (2008) and future (2030) periods and compared them with those of conventional gasoline vehicles and gasoline hybrids. Credit: ACS, Huo et al.
The 100-year global warming potentials (GWPs) for methane, CO, and NO x (per Tg N) as given in the AR4 and in this study when including no aerosol response; the direct radiative effect of aerosol responses; and the direct+indirect radiative effects of aerosol responses. Source: Shindell at al. Click to enlarge. Shindell et al.
Researchers at MIT have determined that growth in aviation causes twice as much damage to air quality as to the climate. Aviation emissions are an increasingly significant contributor to anthropogenic climate change. Aviation emissions are an increasingly significant contributor to anthropogenic climate change.
Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. The team studied 89 healthy adults living in Changsha City, China, for one year.
US Congressman Scott Peters (CA-52) introduced the Super Pollutant Emissions Reduction Act (SUPER Act) of 2013, legislation aimed at combating short-lived climatepollutants, which are only somewhat addressed by disparate government programs. C in projected cumulative warming by 2050 and 1.1 °C
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