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...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...
IPCC supporters point out that the global body does a self-assessment after every major report, looking at what went wrong and what can be improved. Communication will be key - in the case of the mistake about the Himalayan glaciers, some glaciologists have said they knew about the error and tried to alert the IPCC before publication, but were unable to get it fixed. There will inevitably be improvement as the IPCC moves forward, says Bob Corell, a scientist with the Arctic Governance Project and the Global Environment and Technology Foundation. Each time it gets better...
Preventive health experts also point out that there is a difference between survival and quality of life. Being overweight is a major risk factor for many health problems, including Type 2 diabetes, hypertension, stroke, coronary disease, cancer and loss of physical function. "These are strong enough reasons to strive for a healthy weight and avoidance of obesity," says Dr. JoAnn Manson, a Harvard Medical School professor and chief of preventive medicine at Brigham and Women's Hospital. "Moreover, given all of the adverse effects of obesity on health, it isn't biologically plausible that overweight would lower mortality risks...
There is every reason to believe that the concussion crisis will get worse. The speed and size of pro athletes have made the game more dangerous. Offensive linemen now average nearly 315 lb. - 65 lb. more than they did 40 years ago. They launch that weight from a three-point stance, headfirst, at opposing linemen of nearly the same size. There are no small collisions...
...roads, in other words, point to a negotiated settlement...