The Environmental Protection Agency's final version of its Affordable Clean Energy rule is supported by the coal industry, but it's not clear that it will be enough to stop more coal-fired power plants from closing.
J. David Ake/AP
Geriatrics is a specialty that should adapt and change with each patient, says physician and author Louise Aronson. "I need to be a different sort of doctor for people at different ages and phases of old age."
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Anne Schauer-Gimenez (from left) Allison Pieja and Molly Morse of Mango Materials stand next to the biopolymer fermenter at a sewage treatment plant next to San Francisco Bay. The fermenter feeds bacteria the methane they need to produce a biological form of plastic.
Scientists exhumed 10 wooden braziers from eight tombs at the ancient Jirzankal Cemetery in what is now western China. Many of the braziers held stones that were apparently heated and used to burn cannabis plants.
Xinhua Wu/Science Advances