The more that is learned about the pesticide with the awesome name of dichlorodiphenyltrichloroethane, the more dangerous it seems to be. DDT has been accused of contributing to the virtual disappearance of the peregrine-falcon on the East Coast of the U.S., of causing cancer in mice, and of upsetting whole ecosystems. It is ubiquitous, appearing unexpectedly in Lake Michigan's coho salmon and even in Antarctica's snows, where it is carried by winds. Some scientists fear that DDT, washed into oceans, may kill off the plankton that supplies 70% of the earth's oxygen....
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