Word: layer
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...Harvard professor is part of a partnership which will send an unmanned plane through the hole in the ozone layer to record levels of ozone depletion some time in the next few years...
...have learned everything from how to wash windows and mop floors to the proper way to assemble a Big Mac. Customers have some learning to do too. Because Soviets are unaccustomed to eating finger food, many of those invited to a preview disassembled the Big Mak and ate it layer by layer. Despite the cultural hurdles, Cohon is enthusiastic about the huge potential market and optimistic about the adaptability of the people. Says he: "Soviet kids win a lot of medals in the Olympics. We can train them to work in McDonald...
Meanwhile, some of the harm already done will not easily be repaired and may have far-reaching impact. For many years, the industrial nations have been releasing chlorofluorocarbons into the atmosphere, not realizing that these chemicals were destroying the ozone layer, which shields the earth from harmful ultraviolet radiation. Because of the vagaries of air currents, ozone depletion has been most severe over Antarctica. It was the discovery in 1983 of an "ozone hole" over the continent that first alerted scientists to the immediacy of the CFC threat...
Along about February the annual exodus begins in earnest. Once the cold season takes hold, planes stop making regular flights to inland stations, and the ice layer spreads out to sea, making access by ship nearly impossible. Only a few hundred residents stay through the winter...
...will produce many years of policy paralysis. Thomas Lovejoy of the Smithsonian Institution agrees, noting that societies may pay a price for doing nothing that outweighs ) the expense of prudent preparation. While the world hailed the 1987 Montreal Protocol, designed to reduce chlorofluorocarbon output, the destruction of the ozone layer continued to accelerate because of CFCs already in use. Atmospheric chemist Sherwood Rowland of the University of California at Irvine is worried that similar delays in dealing with global warming will produce a treaty that is "a perfect autopsy...