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...occur, however, is unpredictable. The long-term rise in global temperature as a result of greenhouse-gas emissions is overlaid with natural, year-to-year variability in all sorts of interconnected oceanic and atmospheric cycles that slow down warming down or speed it up temporarily. But because these variations tend to be cyclical, the "perfect storm" of conditions that caused the record 2007 melting - a situation Stroeve calls "unusual, but not unprecedented" - will probably return at some point. If they do, the Arctic could be primed for major, even irreversible, changes...

Author: /time Magazine | Title: Melting Arctic Ice: What Satellite Images Don't See | 1/28/2010 | See Source »

...study has a few limitations, however. First, it used height and weight measurements that were reported by participants - which can be imperfect. (People tend to overestimate height and underestimate weight, which skews their BMI.) It also collected height and weight information only once, at the start of the study; researchers could not have known, for instance, whether people might have unintentionally lost weight before the study or during the follow-up as a result of underlying disease. Furthermore, the study's participants had a lower overall mortality rate than the general population, suggesting they were healthier to start with. Many...

Author: /time Magazine | Title: Being Fat May Not Be All Bad — if You're 70 | 1/28/2010 | See Source »

...examined, 10 were from either linemen or linebackers; some scientists now fear that the thousands of lower-impact, or "subconcussive," blows these players receive, even if they don't result in documented concussions, can be just as damaging as - if not more so than - the dramatic head injuries that tend to receive more attention and intensive treatment...

Author: /time Magazine | Title: The Problem with Football: How to Make It Safer | 1/28/2010 | See Source »

...miles (50 km) from San Marcos to University Medical Center Brackenridge in Austin. There a doctor told Eddie and Pita Canales that their son was paralyzed from the shoulders down. Eddie, the director of operations at the University of Texas at San Antonio bookstore, quit his job to tend to his son. He turned him over every two hours to prevent bedsores because the insurance company initially refused to pay for a pressure-supported mattress. He inserted a catheter every three hours. He gave Chris medications every six hours. He slept on the floor next to Chris. His care commenced...

Author: /time Magazine | Title: Texas Football and the Price of Paralysis | 1/27/2010 | See Source »

...after a grueling practice, rowers tend to be pretty hungry...

Author: By Christina C. Mcclintock, CRIMSON STAFF WRITER | Title: Miami Recognizes Coach Harry Parker | 1/27/2010 | See Source »

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