http://en.wikipedia.org/wiki/Coal_by_country
http://en.wikipedia.org/wiki/Acid_mine_drainage
http://www.wired.com/2011/02/pondering-landscapes-a-chat-with-bldgblog-author-geoff-manaugh/
http://www.debeersgroup.com/Operations/Mining/mining-methods/Open-Pit-Mining/
http://en.wikipedia.org/wiki/Lead
http://en.wikipedia.org/wiki/Mercury_poisoning
http://www.tva.com/power/coalart.htm
http://en.wikipedia.org/wiki/Smog
http://en.wikipedia.org/wiki/Coal_slurry
http://en.wikipedia.org/wiki/Kingston_Fossil_Plant_coal_fly_ash_slurry_spill
http://en.wikipedia.org/wiki/Fly_ash
http://thinkprogress.org/climate/2014/02/12/3281881/photos-west-virginia-coal-spill/
http://kids.britannica.com/comptons/art-162911/A-wet-scrubber-uses-a-limestone-slurry-to-remove-sulfur
http://northeastwindmills.com/wind-turbine-wake-effects-go-far-beyond-their-location/
http://www.newsolarinc.com/
http://www.utsandiego.com/news/2012/May/16/energy-first-new-salton-sea-geothermal-plant-in/
http://www.conserve-energy-future.com/TidalEnergy.php
http://1389blog.com/2013/04/17/the-killing-of-america-part-ii/
http://en.wikipedia.org/wiki/Acid_mine_drainage
http://www.wired.com/2011/02/pondering-landscapes-a-chat-with-bldgblog-author-geoff-manaugh/
http://www.debeersgroup.com/Operations/Mining/mining-methods/Open-Pit-Mining/
http://en.wikipedia.org/wiki/Lead
http://en.wikipedia.org/wiki/Mercury_poisoning
http://www.tva.com/power/coalart.htm
http://en.wikipedia.org/wiki/Smog
http://en.wikipedia.org/wiki/Coal_slurry
http://en.wikipedia.org/wiki/Kingston_Fossil_Plant_coal_fly_ash_slurry_spill
http://en.wikipedia.org/wiki/Fly_ash
http://thinkprogress.org/climate/2014/02/12/3281881/photos-west-virginia-coal-spill/
http://kids.britannica.com/comptons/art-162911/A-wet-scrubber-uses-a-limestone-slurry-to-remove-sulfur
http://northeastwindmills.com/wind-turbine-wake-effects-go-far-beyond-their-location/
http://www.newsolarinc.com/
http://www.utsandiego.com/news/2012/May/16/energy-first-new-salton-sea-geothermal-plant-in/
http://www.conserve-energy-future.com/TidalEnergy.php
http://1389blog.com/2013/04/17/the-killing-of-america-part-ii/