#1: Plastic2Oil:
This machine transforms plastic into combustible fuel:
Review: “Plastic to Oil Fantastic” by Carol Smith, United Nations University
Plastic2Oil Official Website
#2: Mr. Trash Wheel:
https://www.facebook.com/attn/videos/1755497348088552/?hc_ref=ARTTZKcP2wrNSuORIpW_TqaXZG9LRk-RFpwYG7Oqy4jhJscLNSOq0m3Qbs5iwvMl7OE&pnref=story
Mr. Trash Wheel Official Website
#3: A Machine That Cleans the Oceans:
https://www.facebook.com/NowThisFuture/videos/1654493437925163/?hc_ref=ART5Eg825J8Nn9qzyC98bdBVRTjtfXFaPR7jroovKAggoIQ83NJ8CuEEUdk4GpBfVvk
#4: Another Machine that Cleans the Ocean: