Scientists make recommendations for a more accurate assessment of controllable biogenic secondary organic aerosols (SOA) formation and its contribution to the total SOA budget.
The famed northern and southern lights have been studied for millennia, but they still hold secrets. In a new study, physicists led by the University of Iowa describe a new phenomenon they call "diffuse auroral erasers," in which patches of the background glow are blotted out, then suddenly intensify and reappear.
New research shows that the global models used to project how Earth's climate will change in the future underestimate the impact of forest fires and drying climate on forests' ability to capture and store atmospheric carbon.
Lightning bolts break apart nitrogen and oxygen molecules in the atmosphere and create reactive chemicals that affect greenhouse gases. Now, a team of atmospheric chemists and lightning scientists have found that lightning bolts and, surprisingly, subvisible discharges that cannot be seen by cameras or the naked eye produce extreme amounts of the hydroxyl radical -- OH -- and hydroperoxyl radical -- HO2.
Analysis of data from a lightning mapper and a small, hand-held radiation detector has unexpectedly shed light on what a gamma-ray burst from lightning might look like - by observing neutrons generated from soil by very large cosmic-ray showers.
Levels of air pollutants in cities in India are on the rise, according to scientists using observations from instruments on satellites that scan the global skies every day.
Aerosol products used in the home now emit more harmful volatile organic compound (VOC) air pollution than all the vehicles in the UK, new research shows. A new study by the University of York and the National Centre for Atmospheric Science reveals that the picture is damaging globally with the world's population now using huge numbers of disposable aerosols - more than 25 billion cans per year.
Summer is the ozone season: The harmful gas forms at ground level on hot, sunny days. In recent years, however, the rise in ozone levels over the summer months has not been as pronounced in Germany as it was previously. According to a new study, this is primarily due to a reduction in nitrogen oxide emissions. This trend can be observed across Germany's southwestern regions in particular, while Berlin lags behind.
New findings detailing the world's first-of-its-kind estimate of how many people live in high-altitude regions, will provide insight into future research of human physiology. Dr. Joshua Tremblay, a postdoctoral fellow in UBC Okanagan's School of Health and Exercise Sciences, has released updated population estimates of how many people in the world live at a high altitude.
A new study led by University of Chicago planetary scientist Edwin Kite uses a computer model of Mars to put forth a promising explanation onto how Mars once contained rivers and lakes: Mars could have had a thin layer of icy, high-altitude clouds that caused a greenhouse effect.