WASHINGTON, March 22 (UPI) — Twenty years after a landmark study proved a link between hazardous-waste sites and minority neighborhoods, the phenomenon has only settled deeper into U.S. towns and cities, a new report says.

What’s more, the racial differences are much greater than previously thought, according to “Toxic Wastes and Race at Twenty,” a preliminary anniversary report released today. The full report will be made public on April 22, Earth Day.

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