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3. Katz, Cheryl (2021): Piling Up: How China’s Ban on Importing Waste Has Stalled Global Recycling. Yale Environment 360, https://e360.yale.edu/features/piling-up-how-chinas-ban-on-importing-waste-has-stalled-global-recycling
4. UN Environment Programme (2021a): Basel Convention Plastic Waste Amendments. http://www.basel.int/Implementation/Plasticwaste/Amendments/Overview/tabid/8426/Default.aspx
5. UN Environment Programme (2021b): Our planet is drowning in plastic pollution—it's time for change!., https://www.unep.org/interactive/beat-plastic-pollution/