ProPublica

For decades, noxious, cancer-causing gases poured from some of the nation’s largest industrial polluters, seeping invisibly from cracks in antiquated pipes or billowing out of smokestacks in plumes that choked the communities nearby. And for decades, the Environmental Protection Agency tracked those emissions not by monitoring the air but by relying on a kind of honor system.

https://link.theoverheadwire.com/mbkuqRead more...