Clouds in the southern hemisphere reflect more sunlight than those in the northern hemisphere. The reason is a more frequent occurrence of liquid water droplets, which results from an interplay between updrafts and a cleaner ...
Environment
Jan 27, 2022
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Like carbon dioxide, methane is one of the most important greenhouse gases. After a period of stagnation around 2000, atmospheric methane concentrations started to rise again in 2007. So far, the causes have been unknown. ...
Environment
Mar 15, 2016
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Around 30 million people in Europe live in mountain valleys. A large part of this population is more affected by air pollution than previously assumed. This is the conclusion of a Slovenian-German research team from measurements ...
Environment
Jul 25, 2022
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Fine particulates have numerous sources – not only traffic, which is currently under particular scrutiny. Reducing agricultural emissions could also considerably reduce the particulate levels that are hazardous to health, ...
Environment
Oct 30, 2017
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An international research team led by Leipzig University has used satellite data to demonstrate that concentrations of pollutant particles have decreased significantly since the year 2000. This is necessary due to their impact ...
Earth Sciences
Sep 21, 2022
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Clouds are influenced by the company they keep. Scientists at Pacific Northwest National Laboratory and the National Center for Atmospheric Research (NCAR) found that ocean-hugging clouds in clean regions are more affected ...
Earth Sciences
Oct 26, 2012
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(Phys.org)—City carbons and country carbons regularly mix in the atmosphere, but how do they get along? That is essentially the question being tackled by a team of scientists led by researchers at Pacific Northwest National ...
Earth Sciences
Aug 27, 2012
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The super volcano Los Chocoyos in Guatemala, Central America, erupted about 84,000 years ago, and was one of the largest volcanic events of the last 100,000 years.
Earth Sciences
Aug 6, 2020
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Particles in the atmosphere affect global climate. For example, the black carbon from burning fossil fuels absorbs and radiates light and heat. To calculate the effects of aerosols on climate, scientists rely on simulated ...
Materials Science
Mar 29, 2023
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4
Soot from burning biomass and fossil fuels leaves a historical record frozen in snow and ice. Researchers at Pacific Northwest National Laboratory and collaborators designed a unique tracer tagging technique in a climate ...
Earth Sciences
May 8, 2015
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