1. Valuing plastics: The business case for measuring, managing and disclosing plastic use in the consumer goods industry;UNEP,2014
2. Plastics Europe, World plastics production 1950-2015, https://committee.iso.org/files/live/sites/tc61/files/The%20Plastic%20Ind accessed July 19, 2017
3. World Economic Forum, Ellen MacArthur Foundation and McKinsey & Company, The new plastics economy - Rethinking the future of plastics 2016.
4. Production, use, and fate of all plastics ever made;Geyer;Science Advances,2017
5. ACC, American Chemistry Council, Economic impact of plastics-to-oil facilities in the U.S., accessed July 19, 2017, https://plastics.americanchemistry.com/Product-Groups-and-Stats/Plastics-to-Fuel/Plastics-to-Fuel-Resources.html