Small sulfate particles of diameters 0.4 µm or less from anthropogenic sources could have had a cooling effect on the climate in the 1970s, by triggering cloud formation and reflection radiation.
Earth Sciences
Oct 17, 2022
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24
Jon Thompson seeks to discover how the composition and morphology of particles affects their ability to absorb or reflect light, thus warming or cooling the climate.
Earth Sciences
Dec 15, 2017
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7
You've seen it when flying into major cities the world over: a haze over the city. It is caused by aerosol particles, but scientists don't know all the details of the complex chemistry involved. At Pacific Northwest National ...
Earth Sciences
Aug 9, 2016
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6
The drastic cut in sulfate particle emissions in Europe partly explains the amplified Arctic warming since the 1980s, shows a new study published in Nature Geoscience.
Earth Sciences
Mar 15, 2016
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43
When acidic materials are spilled, the clean-up procedure involves adding a base chemical to neutralize the acid. Up to a point, the more base added, the more neutral and less toxic the spill becomes.
Earth Sciences
Feb 22, 2016
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6
(Phys.org) —The discoloration of some pigments used in impressionist paintings has been observed since the 19th century. Belgian researchers have now investigated how the colors of chrome yellow pigments change on both ...
Analytical Chemistry
Oct 8, 2013
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0
(Phys.org) —A new study from Germany has studied the tiny dust particles within clouds and their influence on the climate. The influence of dust particles on cloud formation and on the chemical reactions within clouds has ...
Particles from the upper atmosphere trapped in a deep pile of Antarctic snow hold clear chemical traces of global meteorological events, a team from the University of California, San Diego and a colleague from France have ...
Earth Sciences
Feb 25, 2013
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0
Buildings and statues constructed of limestone can be protected from pollution by applying a thin, single layer of a water-resistant coating.
Materials Science
Dec 4, 2012
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0
As the reality and the impact of climate warming have become clearer in the last decade, researchers have looked for possible engineering solutions – such as removing carbon dioxide from the atmosphere or directing the ...
Earth Sciences
Jan 25, 2012
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