Greenland is melting faster than scientists previously thought -- and will likely lead to faster sea level rise -- thanks to the continued, accelerating warming of the Earth's atmosphere, a new study has found.
More than 5.6 million Americans are exposed to nitrate in drinking water at levels that could cause health problems. In this first analysis of its kind, researchers also found that water systems with higher nitrate levels tend to serve communities with higher proportions of Hispanic residents. The findings could help inform programs to assist community water systems that might be vulnerable to contamination.
The onset of the most recent ice age about 2.6 million years ago changed where the western Gulf of Mexico gets its supply of sediments. The finding adds new insight into how extreme climate change can directly impact fundamental geological processes and how those impacts play out across different environments.
With the increased availability of remote sensing technologies, scientists now have access to high-resolution datasets on Earth's surface properties at the global scale. As a result, an international team of scientists, including ASU professor and hydrologist Enrique Vivoni of the School of Earth and Space Exploration, has published the first comprehensive high resolution map of Earth's floodplains in the Nature journal Scientific Data.
In a new study, University of Illinois scientists have estimated that a new conservation practice known as saturated buffers could reduce nitrogen from agricultural drainage by 5 to 10 percent.
New results point to a 200-year period of abnormally strong winter precipitation between c.4.5-4.3 thousand years ago
Variations in the axial tilt of the Earth have significant implications for the rise and fall of the Antarctic Ice Sheet, the miles-deep blanket of ice that locks up huge volumes of water that, if melted, would dramatically elevate sea level and alter the world's coastlines. New research matches the geologic record of Antarctica's ice with the periodic astronomical motions of the Earth.
Biologists at The University of Texas at Austin have discovered three new species of groundwater salamander in Central Texas, including one living west of Austin that they say is critically endangered. They also determined that an already known salamander species near Georgetown is much more endangered than previously thought. They warn that more severe droughts caused by climate change and increasing water use in Central Texas have left groundwater salamanders 'highly vulnerable to extinction.'
A fast-rising number of desalination plants (~16,000, with capacity concentrated in the Middle East / North Africa) quench a growing thirst for freshwater but also create a salty dilemma: how to deal with the chemical-laden leftover brine. In a new analysis, UN experts say that for every litre of freshwater, desalination plants produce on average 1.5 litres of brine (though values vary dramatically by plant). Globally, 142 million cubic meters of brine is discharged daily.
The work of 153 ecological researchers from 40 countries, including Kent State University Assistant Professor Dave Costello, Ph.D., from the Department of Biological Sciences in the College of Arts and Sciences, has revealed new findings on the effect of climatic factors on river-based ecosystems. The findings are published in the latest issue of the journal Science Advances.