There is no longer any doubt: We are entering a mass extinction that threatens humanity’s existence.
That is the bad news at the center of a new study by a group of scientists including Paul Ehrlich, the Bing Professor of Population Studies in biology and a senior fellow at the Stanford Woods Institute for the Environment. Ehrlich and his co-authors call for fast action to conserve threatened species, populations and habitat, but warn that the window of opportunity is rapidly closing.
“[The study] shows without any significant doubt that we are now entering the sixth great mass extinction event,” Ehrlich said.
Although most well known for his positions on human population, Ehrlich has done extensive work on extinctions going back to his 1981 book, Extinction: The Causes and Consequences of the Disappearance of Species. He has long tied his work on coevolution, on racial, gender and economic justice, and on nuclear winter with the issue of wildlife populations and species loss. Read more »
Researchers have helped solve one of the enduring mysteries of the ancient world: why the inhabitants of Madagascar speak Malagasy, a language otherwise unique to Southeast Asia and the Pacific – a region located at least 6,000 km away. An international research team has identified that ancient crop remains excavated from sites in Madagascar consist of Asian species like rice and mung beans. This is thought to be the first archaeological evidence that settlers from South Asia are likely to have colonised the island over a thousand years ago. The findings are published in the journal, Proceedings of the National Academy of Sciences. Read more »
Americans spent $30.2 billion–$28.3 billion for adults and $1.9 billion for children–out-of-pocket on complementary health approaches, according to a nationwide survey. These approaches include a group of diverse medical and health care systems, practices, and products such as herbal supplements, meditation, chiropractic, and yoga. This amount represents 9.2 percent of all out-of-pocket spending by Americans on health care and 1.1 percent of total health care spending.
These findings come from an analysis by the National Center for Complementary and Integrative Health (NCCIH) and the Centers for Disease Control and Prevention, based on data from a special supplement–on use of complementary health approaches–to the 2012 National Health Interview Survey (NHIS). The NHIS is a large survey conducted annually by CDC’s National Center for Health Statistics. NCCIH is part of the National Institutes of Health. Read more »
A study of the content of rare earth elements in U.S. coal ashes shows that coal mined from the Appalachian Mountains could be the proverbial golden goose for hard-to-find materials critical to clean energy and other emerging technologies.
In the wake of a 2014 coal ash spill into North Carolina’s Dan River from a ruptured Duke Energy drainage pipe, the question of what to do with the nation’s aging retention ponds and future coal ash waste has been a highly contested topic.
One particularly entrepreneurial idea is to extract so-called “critical” rare earth elements such as neodymium, europium, terbium, dysprosium, yttrium and erbium from the burned coal. The Department of Energy has identified these globally scarce metals as a priority for their uses in clean energy and other emerging technologies. But exactly how much of these elements are contained in different sources of coal ash in the U.S. had never been explored. Read more »
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There is no longer any doubt: We are entering a mass extinction that threatens humanity’s existence. That is the bad news at the center of a new study by a... Read more »
A study of the content of rare earth elements in U.S. coal ashes shows that coal mined from the Appalachian Mountains could be the proverbial golden goose for hard-to-find... Read more »
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Americans spent $30.2 billion–$28.3 billion for adults and $1.9 billion for children–out-of-pocket on complementary health approaches, according to a... Read more »
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Researchers have helped solve one of the enduring mysteries of the ancient world: why the inhabitants of Madagascar speak Malagasy, a language otherwise unique to... Read more »
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