Word: buildups
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Dates: during 1990-1999
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...chemicals stored in the muscle. Sprinters -- as well as nonathletes dashing from the shower to grab a ringing phone -- rely to a large extent on this system, which provides lots of quick power but can operate for only a short time. The reasons: depletion of the necessary chemicals and buildup of a chemical by- product called lactic acid, which inhibits muscle contraction. Middle- distance athletes depend on a delicate balance of both aerobic and anaerobic systems...
...Zimmerman said that boat buildup is "not aninsurmountable problem." All in all, he said theproposal is "not a bad idea...
...return to normal. They continue to act as if they are being invaded by parasites. This constant state of inflammatory alert damages the bronchial walls, creating scar tissue. As a result, the airways can no longer clear the mucus that forms deep in the lungs. The ensuing buildup reduces the flow of air and sets the stage for the next attack. "In olden times, which was only about five or 10 years ago, we all concentrated on the bronchospasm and assumed the patients were all right between episodes," says Dr. Peter Konig of the University of Missouri...
...methane and other heat- trapping gases in the atmosphere has increased 50% since the start of the Industrial Revolution. Measurements also indicate that the world's average temperature has increased 1 degree F over the past 100 years. The rest is conjecture. Computer models suggest that as the buildup of greenhouse gases continues, average temperatures could jump 3 degrees F to 9 degrees F over the next 60 years. Some scientists speculate that even a small rise in average temperatures could lead to greater extremes in weather patterns from time to time and place to place...
What is new is that for the first time some of the influences that shape our weather are man-made. Experts say it could be 20 or 30 years before they know for certain what effect the buildup of greenhouse gases, the destruction of ancient forests or the depletion of the ozone layer have had. Policymakers looking for excuses not to halt those trends will always be able to point to scientific uncertainty. As Schneider puts it, "We're insulting the system at a faster rate than we can understand." The risk is that by the time we understand what...