Word: layering
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Reports about the ozone layer are as maddeningly variable as the protective shield itself. Estimates of the problem's severity fluctuate virtually with each new set of measurements from the atmosphere. Unfortunately, the estimates do seem to possess one common thread: they are getting worse. Last week's announcement from the Environmental Protection Agency that the shield may be | disappearing nearly twice as fast in northern latitudes as many scientists had predicted is the most alarming report to date. The study noted that the loss was occurring both farther south, over the most populous regions of the U.S., and later...
...presidency saw the creation of an entirely new graduate school--the Kennedy School of Government, the inception of a mammoth endowment management firm--Harvard Management Company, the creation of a new layer of bureacracy in the central administration and a revolution in fundraising...
...Harvard researcher has found that the depletion of the ozone layer by a chlorine compound is occurring above densely populated midlatitude regions, not just over the poles...
Chlorine monoxide is the main compound responsible for breaking apart the ozone molecules over the poles. Most of the chlorine in the ozone layer comes from chlorofluorocarbons and various forms of pollution...
...evidence for the ozone destruction is inconclusive, however. Because the ER-2 only collected data on a few days, it is unclear for how long the chlorine monoxide elevations last. Furthermore, the plane could not make measurements higher up in the main part of the ozone layer, the stratosphere...