For photos located on each page of this website:
Recycle Keyboard Button, by Got Credit: https://flic.kr/p/ro3Ggy
Cardboard for Recycling, by Zelda Richardson: https://flic.kr/p/3hHu7m
Plastic/Aluminum, by elizaIO: https://flic.kr/p/aKSZvi
Pallets, by Sergio Russo: https://flic.kr/p/PNcuy
Packing material: shredded paper, by Tim Regan: https://flic.kr/p/fHnfWP
Digital DNA, City of Palo Alto, Art in Public Places, 9.01.05, California, USA, by Wonderlane: https://flic.kr/p/5SNggT
Recycling, by U.S. Army Environmental Command: https://flic.kr/p/7MwH4T