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As far as anyone can tell, the cold-water crayfish Faxonius eupunctus makes its home in a 30-mile stretch of the Eleven Point River and nowhere else in the world. According to a new study, the animal is most abundant in the middle part its range, a rocky expanse in southern Missouri – with up to 35,000 cubic feet of chilly Ozark river water flowing by each second.

People who swim, bathe or take part in water sports in the sea are substantially more likely to experience stomach bugs, ear aches and other types of illness than those who do not.

Wind and solar power could generate most but not all electricity in the United States, according to an analysis of 36 years of weather data by Carnegie’s Ken Caldeira, and three Carnegie-affiliated energy experts: Matthew Shaner, Steven Davis (of University of California Irvine), and Nathan Lewis (of Caltech).

The creation of Camp Century, from the outset, was an audacious scheme. Under the thick ice of Greenland, a scant 800 miles from the North Pole, the US military built a hidden base of ice tunnels, imagined as an extensive network of railway tracks, stretching over 2,500 miles, that would keep 600 nuclear missiles buried under the ice. Construction began in 1959, under cover of a scientific research project, and soon a small installation, powered by a nuclear reactor, nested in the ice sheet.

Access to wood fuels for cooking must be considered when formulating policy to deal with food insecurity in sub-Saharan Africa, according to researchers who advocate expanding the effort to improve wood-fuel systems and make them more sustainable.