http://cdh.epfl.ch/files/content/sites/cdh/files/shared/shs/histeco_dechets.pdf <br /> <br />http://www.20minutes.fr/planete/1222057-20130912-chine-veut-reduire-quart-pollution-air-grandes-villes-2017 <br /> <br />http://www.telleestmatele.com/article-pollution-le-casse-tete-chinois-68250847.html
