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Ill Winds

Airborne pollution's toll on trees and crops

Across the United States, air pollution is contributing to the decline and ultimate death of forest trees and to widespread losses in crop yields.

Executive Summary

This report summarizes forest and crop damage in the United States and Europe, examines the evidence connecting it to air pollution, and recommends that emissions of nitrogen oxides, sulfur oxides, and hydrocarbons be significantly reduced and non-fossil energy sources introduced.

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