Photo: Dave Herholz/Flickr
Clean Air Act
Photo: Dave Herholz/Flickr
sharply_done/iStockphoto
Photo: Diliff/Wikimedia Commons
iStockphoto.com/mccaig
Photo: Quartl/CC BY-SA 3.0 (Wikimedia)
Jeremy Rempel. CC-BY-ND 2.0 (Flickr)
Jeremy Rempel. CC-BY-ND 2.0 (Flickr)
Pittsburgh, 1947, on the left; Pittsburgh, 1974, on the right. Sources: EPA
Photo: James Gathany, CDC
Joseph-Nicolas Robert-Fleury, “Galileo before the Holy Office” (1847)
USCapitol/Flickr
The world's largest fossil fuel companies have worked to deceive hte public about the realities and risks of climate change for decades. Photo: Steve Garvie
Workers on a VW assembly line. Photo: iStock
Workers on a VW assembly line. Photo: iStock
A disillusioned VW Bug sheds a tear upon hearing that its manufacturer showed such disregard for the environment. (Photo courtesy of David Preston)