An ice sheet in Greenland is the second largest in the world. With an area of 660,000 square miles, the sheet covers about 80 percent of the island and is over 1.2 miles thick. Though we have known for some time that the ice sheet in Greenland has been melting, new research suggests that the ...
Beijing has denied being responsible for the rapid increase in global emissions of CFC-11, a chlorofluorocarbon that is known to damage the ozone layer. During the Montreal Protocol in 1987, multiple nations agreed to phase out CFC emissions to protect the ozone layer and prevent climate aberrations. However, a recent report in the magazine Nature ...
The huge magnetic field that surrounds the Earth, protecting it from radiation and charged particles from space — which many animals even use for orientation purposes — is changing all the time, which is why geoscientists constantly keep it under surveillance. The old well-known sources of the Earth’s magnetic field are the Earth’s core — ...
Coal ash solids found in sediments collected from Sutton Lake in 2015 and 2018 suggest the eastern North Carolina lake has been contaminated by multiple coal ash spills, most of them apparently unmonitored and unreported until now. Avner Vengosh, professor of geochemistry and water quality at Duke University’s Nicholas School of the Environment, who led the ...
Scientists believe they have discovered the site of the biggest meteorite impact ever to hit the British Isles. Evidence for the ancient, 1.2 billion-year-old meteorite strike was first discovered in 2008 near Ullapool, N.W. Scotland, by scientists from Oxford and Aberdeen Universities. The thickness and extent of the debris deposit they found suggested the impact ...
The diamond on your finger is most likely made of recycled seabed cooked deep in the Earth. Traces of salt trapped in many diamonds show the stones are formed from ancient seabeds that became buried deep beneath the Earth’s crust, according to new research led by Macquarie University geoscientists. Most diamonds found at the Earth’s ...
It’s summer getaway season. According to AAA, two-thirds of American families are taking a summer vacation this year, and more than half of us are planning a road trip. But is the traffic-related air pollution caused by our road trips, as well as our daily commuting, having a negative impact on our health? Traffic-related air ...
Concentrations of antibiotics found in some of the world’s rivers exceed “safe” levels by up to 300 times, the first-ever global study has discovered. Researchers looked for 14 commonly used antibiotics in rivers in 72 countries across six continents and found antibiotics at 65 percent of the sites monitored. Metronidazole, which is used to treat bacterial ...
When scientists recently discovered a surge in the use of CFC-11, an ozone-destroying chemical, they were perplexed. Since the chemical was banned, its increased use did not make any sense. The researchers then discovered that the chemical was being used widely in China. The source CFC-11, also known as freon-11, is a chemical that was ...
The crop-eating fall armyworm has been found in 11 provinces in China as of May 9, now threatening the production of staples such as corn, rice, and wheat in about a third of the country since it was detected in late January. This plague of armyworms threatens China’s food supply. Along with African swine fever, ...
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