and Eriksson, soil scientist Svante Oden, combined all of these findings, and more, in 1967 and 1968. Somewhat flamboyantly, Oden described for the Swedish press a foul "chemical war" among the na- tions of Europe, in which pollutants of a single country could travel over 1,200 miles in the atmosphere. His reports finally aroused scores of European and North American scientists and politicians.
As of late 1981,93 stations across the United States and 50 in Canada had been set up to monitor...