Enviros Train Drone Pilots to Find and Pursue Pollution | Business News

By MICHAEL PHILLIS and JULIO CORTEZ, Associated Press POOLESVILLE, Md. (AP) — When environmentalist Brent Walls saw a milky-white substance in a stream flowing through a rural stretch of central Pennsylvania, he suspected the nearby rock mine was violating the law. Recent rains had filled the ponds at the mine that allow sediment to settle … Read more