Word: cfc
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...precise chemical process is still uncertain, but the central role of CFCs is undeniable. Last month Barney Farmer, an atmospheric physicist at the Jet Propulsion Laboratory in Pasadena, Calif., announced that his ground-based observations as a member of the 1986 Antarctic National Ozone Expedition pointed directly to a CFC-ozone link. "The evidence isn't final," he said, "but it's strong enough." Earlier this month, results from NASA's Punta Arenas project confirmed the bad news. Not only was the ozone hole more severely depleted than ever before -- fully 50% of the gas had disappeared during the polar...
...Montreal negotiations, which capped nearly five years of talks, lasted nine days and involved some 150 scientists, environmentalists and industry representatives. The protocol allows developing countries to increase CFC use for ten years, in the interest of making more available to them items like refrigerators. It permits the Soviet Union, which plans its economy in five- year cycles, to go ahead with production scheduled through 1990. Thus the amount of the chemicals produced worldwide will actually grow by as much as 15% in the coming decade, cutting the real decrease by 1999 to just...
Despite strong anti-CFC laws in the U.S. and Canada, many countries . continued to allow the compound to be used as a propellant in aerosol products and as a cooling agent in refrigerators, air conditioners and other appliances. Finally, last week representatives of 31 nations, including Britain, West Germany and the Soviet Union, agreed that by 1992 they would cut back on their production of chlorofluorocarbons by 20%. Mostafa Tolba, executive director of the U.N. Environment Program, felt the agreement did not go far enough. He warned, "If we mess up this planet, we can't go and look...
...found another hole. Centered over Spitsbergen, Norway, 700 miles from the North Pole, it is one-third the size of the Antarctic hole. Heath claims the region's ozone loss has been 1.5% a year for the past six years and says this location fits models of CFC-caused loss...