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Scientists on the U.N.'s Intergovernmental Panel on Climate Change warned this week that the effects of global warming are already being felt in Africa. The IPCC's most recent report on Africa predicted a minimum 2.5 degree centigrade increase in the continent's temperature by 2030. Growing seasons will be cut short and stretches of land made unsuitable for agriculture, with yields declining by as much as 50% in some countries. In sub-Saharan Africa, between 25% and 40% of animals in national parks may become endangered. Africa's major bodies of water, including the Nile, will suffer excessive...
There is a very large gap between recognizing how addiction looks on a brain scan and developing therapies that are effective enough to safely abolish addictive behavior. Once a safe and effective candidate drug is discovered, a minimum of five years is needed before the Food and Drug Administration can deem it safe to administer to millions of addicts. We are at least a decade away from even starting such trials. Addiction is a side effect of the positive evolutionary pressures to respond to pleasurable stimuli by seeking repeat stimulation. Alcoholics Anonymous is one form of therapy that...
...turns into water - which absorbs heat - the shrinkage is accelerating faster than climate models ever predicted. On Aug. 28, satellite images analyzed by the University of Colorado's National Snow and Ice Data Center revealed that the Arctic ice cap was already 10% smaller than at its previous record minimum, in September 2005 - and it still had about a month of further melting to go. "If that's not a tipping point, I'd hate to see what a tipping point is," says Mark Serreze, the center's senior research scientist. Trausti Valsson, a professor of environmental planning...
...they can compare scores after a head injury. The league also added a concussion hotline that players can anonymously call if coaches are forcing them to play against medical advice. Such measures won't prevent catastrophic injuries on the gridiron, but they may help to keep them to a minimum...
Thompson wasn't subtle in hitting points one and two: "My story is an American story," he began. He then proceeded to chart his life from teenage father of three and minimum-wage worker to lawyer, Watergate counsel, Senator, actor and now new father of two small kids. In this, the Tennessee Senator follows a well-worn rhetorical path...