Researchers were able to observe stress changes before and during an earthquake induced by hydraulic fracturing in Alberta, Canada, with the help of a phenomenon called seismic anisotropy.
Earth Sciences
Mar 2, 2022
0
21
The way companies drill for oil and gas and dispose of wastewater can trigger earthquakes, at times in unexpected places.
Earth Sciences
Nov 11, 2020
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1686
Researchers at the University of Alberta have conducted the first-ever study to use hydraulic fracturing fluids to examine effects on aquatic animals, such as rainbow trout. Horizontal drilling with high-volume hydraulic ...
Environment
Jan 25, 2017
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18
As the oil and gas drilling technique called hydraulic fracturing (or "fracking") proliferates, a new study on the contents of the fluids involved in the process raises concerns about several ingredients. The scientists presenting ...
Environment
Aug 13, 2014
20
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In the United States, natural-gas production from shale rock has increased by more than 700 percent since 2007. Yet scientists still do not fully understand the industry's effects on nature and wildlife, according to a report ...
Environment
Aug 1, 2014
4
1
The oil and gas extraction method known as hydraulic fracturing, or fracking, could potentially contribute more pollutants to groundwater than past research has suggested, according to a new study in ACS' journal Environmental ...
Environment
Jun 25, 2014
1
0
University of Iowa researchers have confirmed that sediments of the Indiana Harbor and Ship Canal (IHSC) in East Chicago, Ind., are contaminated with polychlorinated biphenyls (PCBs).
Environment
Jan 12, 2010
1
0
Using computer analysis prior to drilling could limit seismic events as a result of hydraulic fracturing, according to new research published in the Canadian Geotechnical Journal.
Environment
Nov 10, 2015
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25
In early January, almost 3 million gallons of wastewater from a hydraulic fracturing ("fracking") operation in North Dakota spilled into nearby creeks. The accident highlighted ongoing concerns about what's in fracking fluids ...
Environment
Mar 18, 2015
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15
Even the snow on Aconcagua Mountain in the Andes is polluted with PCBs. An international team of researchers detected low concentrations of these toxic, carcinogenic chlorine compounds in samples taken from America's highest ...
Environment
Dec 7, 2009
3
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