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UrduA team of researchers have recently come up with a new strategy for investigating the effect of salt uptake on polyester microdroplets.
Tag: ATMOSPHERIC CHEMISTRY
“Dark” side of air pollution across China poses potential health threat
China is a night-time ‘hot-spot’ for the production of nitrate radicals (PNO3) that could have a major impact on health-threatening ozone and fine particulates (PM2.5) in the atmosphere, a new study reveals.
Study shows hazardous herbicide chemical goes airborne
New research from the lab of Kimberly Parker at the McKelvey School of Engineering shows that amines, sometimes used as an additive in herbicides, can enter the atmosphere, where they pose risks for human health and alter the atmosphere.
New tests can detect tiny but toxic particles of coal ash in soil
Test finds ash at concentrations so low and sizes so small that other tests would likely miss it
California’s carbon mitigation efforts may be thwarted by climate change itself
UCI study: Higher heat will limit ecosystem’s role in removing atmospheric CO2
The challenge of capturing carbon
In the race to combat climate change, capturing carbon dioxide (CO 2 ) emissions has been touted as a simple road to reach net-zero emissions by 2050. While the science behind carbon capture is sound, current technologies are expensive and…
Tree-ring records reveal Asian monsoon variability
Chinese researchers along with international colleagues recently reported a 6,700-year-long, precisely dated and well-calibrated tree-ring stable isotope chronology from the Northeastern Tibetan Plateau. It reveals full-frequency precipitation variability in the Asian Summer Monsoon (ASM) from interannual to multimillennial timescales with…
New method predicts ‘stealth’ solar storms before they wreak geomagnetic havoc on Earth
For the first time, stealth coronal mass ejections can be detected before they wreak havoc on Earth without the need for dedicated spacecraft
Private-public partnership helps to evaluate satellite observations of atmospheric CO2 over oceans
Observations of carbon dioxide (CO2) on board cargo ship and passenger aircraft are upscaled for an expansion of the column-averaged CO2 (XCO2) database uniquely over the ocean. This XCO2 data will be used for improving satellite retrieval algorithms over
Study shows that electronic air cleaning technology can generate unintended pollutants
As the Covid-19 pandemic raged, news reports show that sales of electronic air cleaners have surged due to concerns about airborne disease transmission. But a research team at the Georgia Institute of Technology has found that the benefits to indoor…
Extraordinary carbon emissions from El Nino-induced biomass burning estimated using Japanese aircraft and shipboard observations in Equatorial Asia
Equatorial Asia, which includes Indonesia, Malaysia, Papua New Guinea, and surrounding areas, experienced devastating biomass burning in 2015 due to the severe drought condition induced by the extreme El Niño and a positive anomaly of the Indian Ocean dipole. This…
Melting High Mountain Asia glaciers are revealed as a potential source of greenhouse gases
The cryosphere, a term used to describe the areas of the Earth’s surface where water exists in solid form, plays an important role in regulating the Earth’s climate. Due to cryospheric retreat; for example, the melting Greenland ice sheet in…
Chemical plants combat nitrous oxide emissions
When most people think of nitrous oxide (N 2 O), they think of a trip to the dentist. However, N 2 O is the third-most emitted greenhouse gas after carbon dioxide and methane, and it causes severe damage to the…
How air pollution changed during COVID-19 in Park City, Utah
As luck would have it, the air quality sensors that University of Utah researcher Daniel Mendoza and his colleagues installed in Park City, Utah in September 2019, hoping to observe how pollution rose and fell through the ski season and…
More EVs could reduce CO2 emissions in Hawaii by 93% in less than 30 years
By 2050, faster adoption of electric vehicles (EVs) and faster generation of renewable energy will result in 99% less fossil fuel consumed and 93% less CO2 emissions from passenger and freight vehicles on O?ahu. That’s under the most ambitious scenario…
Reducing the melting of the Greenland ice cap using solar geoengineering?
A study conducted by ULiège climatologists using the MAR climate model looks at the feasibility and impact of using such technologies
Tiny tools: Controlling individual water droplets as biochemical reactors
Scientists develop a method to better manipulate tiny droplets in lab-on-a-chip applications for biochemistry, cell culturing, and drug screening
How to build a better wind farm
It is imperative that we understand the relationship between turbine placement and maximum energy extraction
Climate change makes arctic ozone loss worse
Results of the MOSAiC expedition show: the expected recovery of the ozone layer may fail to happen anytime soon, if global warming is not slowed down In spring 2020, the MOSAiC expedition documented an unparalleled loss of ozone in the…
Mapping methane sources in Paris
A potent greenhouse gas, methane is released by many sources, both human and natural. Large cities emit significant amounts of methane, but in many cases the exact emission sources are unknown. Now, researchers reporting in ACS’ Environmental Science & Technology…
Addressing inequity in air quality
Air quality varies greatly within regions and cities around the world, and exposure to air pollution can have severe health impacts. In the U.S., people of color are disproportionately exposed to poor air quality. A cover story in Chemical &…
Effects of ‘Fenton-like’ reactions of ferric oxalate on atmospheric oxidation processes and radiative forcing
The Fenton reaction is a chemical transition involving hydrogen peroxide (H 2 O 2 ) and the ferrous (iron) ion, which acts as a catalyst. This process is used to destroy hazardous contaminants in wastewater through oxidation. In the atmosphere,…
Soot from heaters and traffic is not just a local problem
Study from Thuringia shows: 50% of the soot that is harmful to health comes from local sources and 50% from long-distance transport
CO2 sensors in two urban areas registered big drop in emissions during COVID-19 pandemic
Scientists show they can reliably track changes in urban emissions by directly measuring CO2 in the air above cities
CO2 emissions are rebounding, but clean energy revolutions are emerging
Climate change has worsened each year, but across the globe there are promising signs of real decarbonization, according to UC San Diego researchers
Atmospheric metal layers appear with surprising regularity
Twice a day, at dusk and just before dawn, a faint layer of sodium and other metals begins sinking down through the atmosphere, about 90 miles high above the city of Boulder, Colorado.
Mapping intermittent methane emissions across the Permian Basin
Researchers reporting in ACS’ Environmental Science & Technology Letters have conducted an extensive airborne campaign with imaging spectrometers and identified large methane sources across the Permian Basin area.
Ancient volcanic eruption destroyed the ozone layer
A catastrophic drop in atmospheric ozone levels around the tropics is likely to have contributed to a bottleneck in the human population around 60 to 100,000 years ago, an international research team has suggested. The ozone loss, triggered by the…
If countries implement Paris pledges with cuts to aerosols, millions of lives can be saved
A strategic approach to reducing both greenhouse gas emissions and air pollution can reap major health and temperature benefits, according to new UC San Diego research
A fiery past sheds new light on the future of global climate change
Ice core samples reveal significant smoke aerosols in the pre-industrial Southern Hemisphere
Understanding the Arctic
Sustaining the Arctic Data Center enables research advances by using open data
Does cold wildfire smoke contribute to water repellent soils in burned areas?
New pilot study finds severe water repellency in sand samples after treatment with both hot and cold smoke
FSU researchers find Greenland glacial meltwaters rich in mercury
New research from Florida State University shows that concentrations of the toxic element mercury in rivers and fjords connected to the Greenland Ice Sheet are comparable to rivers in industrial China, an unexpected finding that is raising questions about the…
Solar geoengineering may be effective in alleviating impacts of global warming on crops
Research offers better understanding of solar geoengineering’s effect on agriculture
Did Earth’s early rise in oxygen help multicellular life evolve?
A new study is taking the air out of a hypothesis linking early Earth’s oxygenation to larger, more complex organisms. Georgia Tech researchers report a more complex effect
Researchers develop framework incorporating renewables and flexible carbon capture
This integration could result in significant benefits to efficiency and cost reduction
How planets form controls elements essential for life
The prospects for life on a given planet depend not only on where it forms but also how, according to Rice University scientists.
UM professor awarded $430,000 NASA grant
MISSOULA – A University of Montana geosciences professor who studies the structure and evolution of the Earth has received a prestigious grant from NASA’s Earth Surface and Interior Division. Hilary Martens, assistant professor in the Department of Geosciences, housed in…
Northern forest fires could accelerate climate change
BU researchers used NASA satellite imaging data to analyze 30 years of Earth’s northern forests and found that fires are increasingly hampering forests’ ability to capture and store atmospheric carbon
Landmark program joins investors with scientists to confront climate change
Finance giant AllianceBernstein to work with Columbia Climate School
Faster Air Exchange in Buildings Not Always Beneficial for Coronavirus Levels
Modeling study suggests vigorous ventilation can cause spike in viral concentrations
Impacts of coronavirus lockdowns: New study collects data on pollutants in the atmosphere
One consequence of the coronavirus pandemic has been global restrictions on mobility. This, in turn, has had an effect on pollution levels in the atmosphere. Researchers from across the world are using this unique opportunity to take measurements, collect data,…
Reducing ocean acidification by removing CO2: Two targets for cutting-edge research
Is it possible to simultaneously address the increase of the concentration of carbon dioxide (CO 2 ) in the atmosphere and the resulting acidification of the oceans? The research of the project DESARC-MARESANUS, a collaboration between the Politecnico di Milano…
First air quality profile of two sub-Saharan African cities finds troubling news
Pollution up to 5 times over international guidelines
New study sews doubt about the composition of 70 percent of our universe
Researchers the world over have long believed that 70 percent of the universe is composed of dark energy, a substance that makes it possible for the universe to expand at an ever-increasing rate. But in a new study, University of Copenhagen researchers te
Venus plots a comeback
In terms of space exploration, Mars is all the rage these days. This has left our closest neighbor, Venus — previously the most attractive planet to study because of its proximity and similar atmosphere to Earth — in the lurch.…
New study discovers ancient meteoritic impact over Antarctica 430,000 years ago
Research led by the University of Kent’s School of Physical Sciences has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago
Researchers: Plants play leading role in cycling toxic mercury through the environment
UMass Lowell-led team tracks path of pollutant worldwide
Georgia State researchers receive $1.2 million grant to develop novel radon testing system
The test bed will measure radon gas continuously, 24 hours a day, seven days a week
How coastal forests are managed can impact water cycle
Younger trees take up and release less water than mature trees 10 years or older, researchers from North Carolina State University found in a new study that tracked how water moves through wetland pine forests near the North Carolina coast.…