Word: keeping
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...competitive runner," but he suggests the technique for people with a history of stress fractures, like former athletes. The biggest risk factor for stress fractures, he notes, is simply having had such a fracture in the past. But the best advice for runners wishing to reduce injuries is to keep running; that is, run consistently and avoid long periods of inactivity. That may be especially hard during the snowy winter months, but runners should try to get in a daily workout - hitting the treadmill, running up and down stairs or even shoveling the driveway should do the job. Just...
...have mostly focused on these factors as they affect individual species, but the new paper takes a more global view. By combining temperature projections on a very fine scale with global topographic maps, researchers have predicted change not for specific species, but for the climatic zones they need to keep up with...
More than intuitive, this new index could also prove very useful, especially to conservationists who work to keep species from extinction. While the average velocity of climate change may be a bit less than a half-kilometer per year worldwide, according to the paper, it can be significantly faster or slower depending on the local topography. In deserts and other flat areas, such as the Amazon basin, climatic zones will move faster, while hilly or mountainous terrain will slow things up. "In the Northern Hemisphere, for example," explains lead author Scott Loarie, "north-facing slopes tend to be cooler...
According to the velocity maps that Loarie and his colleagues put together, only 8% of the world's national parks and other preserves will retain their current climate over the next century, compounding the problem of how to keep species from going extinct. One way to do that is simply to move them. But that's not only extraordinarily difficult, it can also backfire - just ask anyone in the southeastern U.S. about the inexorable advance of the imported invasive species the kudzu vine. "For some species on the brink of extinction, physically moving them might be our only option," says...
...most North Koreans, Christmas has long been a nonevent, in part because the government keeps a tight rein on information about religious holidays from entering the country, and in part because Christians can be arrested for celebrating it. Though the country's constitution does grant freedom of religion to all citizens, North Korean authorities don't seem to pay the idea much heed. The government also monitors other religions - such as Buddhism and Cheondoism, a popular Korean belief system that combines elements of several faiths - but underground churches are particularly feared by authorities because they're estimated to have helped...