Imagine waking up and throwing open your bedroom window for a breath of fresh air, only to find black soot blanketing the sill and a yellow-brown haze hanging in the sky.
In the late 1960s, Peabody Energy, an international coal mining company, entered into an agreement with the Hopi and Navajo tribes of Arizona's Black Mesa to begin what would become the nation's largest strip mining operation.
In April, San Francisco's mayor, Gavin Newsom, signed an ordinance to reduce the single largest source of diesel pollution in the city, which, you may be surprised to learn, consists of bulldozers, cranes, and other heavy construction equipment.