Kilder

http://www.clioonline.dk/geografifaget/?_ga=1.93893595.773285632.1463645771

https://drive.google.com/a/antvorskovskole.dk/file/d/0B42_oLD5-i3RV1NtcVJfQnpBQ3M/view

https://drive.google.com/open?id=0B42_oLD5-i3ReUJIazZyZE5POFU&authuser=0

http://www.plasticchange.org/dk/

http://www.express.co.uk/life-style/top10facts/556136/Top-10-facts-about-plastic

http://ecowatch.com/2014/04/07/22-facts-plastic-pollution-10-things-can-do-about-it/