http://www.independent.co.uk/news/science/why-the-world-is-running-out-of-helium-2059357.html
http://www.trikeenan.com/pdfs/boneyard_final.pdf
http://www.travelandleisure.com/articles/wild-wild-south
http://forcechange.com/2103/places-to-visit-before-climate-change-ruins-them/
http://gothamist.com/2012/11/12/cuomo_wants_30_billion_from_washing.php
http://www.engadget.com/2012/10/29/philips-hue/
http://www.huffingtonpost.com/marc-stoiber/sustainability-branding_b_1967768.html