A treaty to curb acid rain
It is believed to be responsible for the slow death of one-third of West Germany's forests, the poisoning of lakes and woods in North America and the contamination of drinking water on both continents. But in part because acid rain is an insidious form of air pollution that is carried long distances before falling as rain and snow, there has been little cooperation between those who create the problem and those who suffer its consequences. That is changing. At a meeting in Ottawa last week, representatives of...
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