Volcanic eruptions emit sulfate aerosols via volcanic plumes, which may stay in the stratosphere for months to years, reflecting sunlight back into space, cooling the Earth's lower atmosphere or troposphere over a long time ...
Earth Sciences
Nov 21, 2017
0
17
A recently published article in Environmental Toxicology and Chemistry, "Effects of Micronized and Nano-Copper Azole on Marine Benthic Communities" explores the risks to the smallest creatures in aquatic communities posed ...
Materials Science
Oct 26, 2017
0
4
As China struggles to find ways to remedy the noxious haze that lingers over Beijing and other cities in the winter, researchers from Georgia Institute of Technology have cast serious doubt on one proposed cause: high levels ...
Environment
Oct 4, 2017
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71
Oxygen has three stable isotopes (16O, 17O and 18O). Enrichment of 17O relative to the dominant 16O is normally about half of that of 18O for various physicochemical processes, except for ozone (O3) production, which uniquely ...
Earth Sciences
Mar 23, 2017
0
11
Despite ongoing global pollution, researchers have discovered that levels of mercury in seabirds off the coast of B.C. have remained relatively stable over the past 50 years. Surprisingly, mercury in seabirds is now actually ...
Environment
Dec 16, 2016
0
98
Water and aqueous solutions can behave strangely under pressure. Experiments carried out at the GFZ German Research Centre for Geosciences using Raman spectroscopy and a diamond anvil cell showed that magnesium sulfate dissolved ...
Condensed Matter
Nov 10, 2016
0
4
To the naked eye, ancient rocks may look completely inhospitable, but in reality, they can sustain an entire ecosystem of microbial communities in their fracture waters isolated from sunlight for millions, if not billions, ...
Earth Sciences
Oct 27, 2016
0
29
For at least a billion years of the distant past, planet Earth should have been frozen over but wasn't. Scientists thought they knew why, but a new modeling study from the Alternative Earths team of the NASA Astrobiology ...
Earth Sciences
Sep 27, 2016
3
20
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
0
6
By monitoring stem cell differentiation on gels that mimic the stiffness and nanofibrous structure of biological tissue, researchers have identified the specific molecules that stem cells use when selecting bone and cartilage ...
Biochemistry
Jul 27, 2016
0
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