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When Arctic permafrost soil thaws, greenhouse gases are released into the atmosphere, but most of the carbon currently escaping from lakes in northern Alaska is relatively young, according to a new study led by researchers at the University of California, Irvine. Findings paint less dire climate picture, as ancient emissions are more harmful.

Concerns over hydraulic fracturing, an oil and gas extraction method that injects millions of gallons of freshwater and chemicals into shale, have largely focused on potential impacts on water quality. But, as scientists report in ACS’ journal Environmental Science & Technology, “fracking” operations could have impacts on water quantity because they are withdrawing these large amounts of water from nearby streams, which house aquatic ecosystems and are used by people for drinking and recreation.

Continental shelves are an increasing global sink for atmospheric carbon dioxide.

An international group of scientists led by the University of Granada (UGR) has demonstrated that the long-term intake of sunflower or fish oils damages the liver and can cause a series of alterations in it, giving rise to non-alcoholic steatohepatitis (NASH).

A new study led by Northern Illinois University meteorologist Victor Gensini identifies a method for predicting the likelihood of damaging hailstorms in the United States—up to three weeks in advance.