Word: nitrogen
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...just a breakdown in the distribution system." An interruption in the movement of air from the tropics, where most ozone is created, to the poles could easily result in less ozone reaching the Antarctic. Another theory: perhaps the sunspot activity that peaked around 1980 created more ozone- destroying nitrogen radicals than usual, which would be activated each spring by sunlight...
...scientists agree that atmospheric chemistry and dynamics are major causes, the increased scrutiny of the Antarctic atmosphere following the discovery of the hole has seriously undercut the sunspot theory. Data from Punta Arenas, says Robert Watson, a NASA scientist involved in that study, made the verdict all but final. Nitrogen and ozone levels were down, but concentrations of chlorine monoxide were 100 times as great as equivalent levels at temperate latitudes. Says Watson: "We can forget the solar theories. We can no longer debate that chlorine monoxide exists and that its abundance is high enough to destroy ozone...
...similar attempt to ease the greenhouse effect by imposing limits on CO2 and other emissions is unlikely. John Topping, president of the Washington- based Climate Research Institute, argues that adjustments in agricultural production, like limiting the use of nitrogen-based fertilizers, would have only a slight effect. A more important step would be to protect the tropical rain forests, a move that would certainly be resisted by developers. Obviously, the most far-reaching step would be to cut back on the use of fossil fuels, a measure that would be hard to accomplish in industrialized countries without a wholesale turn...
...opinion piece primarily about Harvard Real Estate in the September 29 Crimson has many errors and half-truths and is grossly unfair to Sally Zeckhauser. A few examples: there is no state or other official estimate predicting MATEP will cause any lung cancer deaths over 40 years because of nitrogen dioxide or, for that matter, any other emissions; HRE does not run the shuttle bus system; and HRE found a home in Holyoke Center for the Thomas More Bookstore when the store had to move...
This plant sparked protest in Boston's Mission Hill district over the past decade because its smoke was considered a health hazard. State estimates predict that four more people will die of lung cancer over the next 40 years because of nitrogen dioxide pollution belched from the plant...