Hacker News
- What America looked like before the EPA cleaned it up https://www.popsci.com/america-before-epa-photos/ 25 comments
- This is what America looked like before the EPA cleaned it up https://www.popsci.com/america-before-epa-photos/ 92 comments environment
- This is what America looked like before the EPA cleaned it up http://popsci.com/america-before-epa-photos 418 comments politics
- For all the climate defeatest/fatalists out there saying that progress isn't possible: This is what America looked like before the EPA cleaned it up https://www.popsci.com/america-before-epa-photos/ 156 comments climate