discussion

1-5 picture : instructions 

6 pictures: examples

http://www.gaslandthemovie.com/

https://www.nytimes.com/2011/12/31/world/south-african-farmers-see-threat-from-fracking.html?sq=fracking%20and%20natural%20gas&st=cse&scp=1&pagewanted=all&mtrref=undefined&gwh=BA4DA8E48E99B2EE59BBBCB954E7395C&gwt=pay#comments

https://archive.nytimes.com/www.nytimes.com/interactive/2011/12/30/world/major-shale-gas-basins.html?ref=world

https://www.nytimes.com/2011/12/02/us/drilling-down-fighting-over-oil-and-gas-well-leases.html?ref=world

https://www.nytimes.com/2011/10/20/us/rush-to-drill-for-gas-creates-mortgage-conflicts.html?ref=world

https://www.nytimes.com/2011/08/04/us/04natgas.htmlref=world&mtrref=undefined&mtrref=www.nytimes.com&gwh=9EB4B93A35B0EF3D81574CF7243C2E2B&gwt=pay