Warming Climate May Cause Arctic Tundra To Burn:
Research from ancient sediment cores indicates that a warming climate could make the world's arctic tundra far more susceptible to fires than previously thought. The findings are important given the potential for tundra fires to release organic carbon -- which could add significantly to the amount of greenhouse gases already blamed for global warming.
Stop-And-Go Traffic: An Accident? Construction Work? No, Just Too Much Traffic:
A new study from a Japanese research group explains why we're occasionally caught in traffic jams for no visible reason. The real origin of traffic jams often has nothing to do with obvious obstructions such as accidents or construction work but is simply the result of there being too many cars on the road.
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Most Physicians Sleep Fewer Hours Than Needed For Peak Performance, Report Says:
In a new survey, physicians report they are not getting the sleep they need to function at their best and current work schedules may contribute to their inadequate sleep. The survey, issued by the American College of Chest Physicians Sleep Institute (ACCP-SI), found that most physicians sleep fewer hours than needed for peak performance and nearly half of physicians believe their work schedules do not allow for adequate sleep. Results further indicated that, when compared to the general population, physicians reported more caffeine use but better overall health.
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