See links for source data. NatGeo; http://ngm.nationalgeographic.com/2011/03/age-of-man/anthropocene-photography Credit: various sources
- See links for source data. NatGeo; http://ngm.nationalgeographic.com/2011/03/age-of-man/anthropocene-photography
- See links for source data. The Frame; http://blogs.sacbee.com/photos/2010/05/aerial-images-of-the-oil-spill.html
- See links for source data. The Frame; http://blogs.sacbee.com/photos/2010/05/aerial-images-of-the-oil-spill.html
- See links for source data. WesternWild; http://www.westernwild.org/page/2/
- See links for source data. Un-natural Gas; http://www.un-naturalgas.org/hydraulic_fracturing_a-z.htm
- See links for source data. Un-natural Gas; http://www.un-naturalgas.org/hydraulic_fracturing_a-z.htm
- See links for source data. Pembina; http://www.pembina.org/oil-sands/photos
- See links for source data. See links for source data. Pembina; http://www.pembina.org/oil-sands/photos
- See links for source data. National Memorial for the Mountains; http://www.flickr.com/photos/nationalmemorialforthemountains/sets/72157594303835554/detail/
- See links for source data. National Memorial for the Mountains; http://www.flickr.com/photos/nationalmemorialforthemountains/sets/72157594303835554/detail/
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