https://www.pcmag.com/article2/0,2817,2383568,00.asp

https://www.consumerreports.org/recycling/how-to-recycle-electronics/

http://www.pbs.org/wgbh/nova/next/physics/rare-earth-elements-in-cell-phones/

https://www.techradar.com/news/phone-and-communications/mobile-phones/our-smartphone-addiction-is-costing-the-earth-1299378

https://www.youtube.com/watch?v=9GorqroigqM