An array of solar panels glisten in the sun outside Cannon Ball, N.D., located on the north side of the Standing Rock Indian Reservation, where the grand opening for the project was held on Friday, July 26, 2019. The project was motivated in part by the controversial Dakota Access pipeline that was built over the objections of Native American leaders and others. The solar project is meant as a first step toward clean energy independence and a way to power all 12 of the reservation communities. (AP Photo/Dave Kolpack)
The increasingly common practice of disposing of oil and gas drilling wastewater by injecting it underground can trigger earthquakes, according to federal scientists who studied quakes since 1970 in Colorado and neighboring states.read more