As the crisis over safe drinking water in Flint, Mich., continues, we’re learning more about the irresponsibility and callousness of officials and politicians in charge. And we're learning more about the harmful effects of lead on children and adults.

Unbelievably, an estimated three to six million miles of lead pipes across the U.S. still carry water, and most all of them are vulnerable to dangers like those in Flint, reports Green Building Advisor guest blogger Chris Sellers.

Long before that fateful decision two years ago to turn to the Flint River for the city’s drinking water, pipes made of lead had threaded throughout the city’s underbelly. Flint shares this historical legacy with thousands of other cities, suburbs, and towns across our country, and most likely this is not the first time, even in Flint, that these pipes have conveyed tiny amounts of the toxin into homes and children

Here, Green Building Advisor guest blogger Chris Sellers urges public officials to replace lead water lines systematically and proactively, not just one crisis at a time.

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