1. Associated Press. 2019. US mine sites pour 50M gallons of polluted water daily. https://cbs4indy.com/news/national-world/us-mine-sites-pour-50m-gallons-of-polluted-water-daily/.
2. Collins, A. 2019. EPA report shows increased chemical releases at Red Dog mine, state pushes back. Alaska Public Media. https://www.alaskapublic.org/2019/03/06/epa-report-shows-increased-chemical-releases-at-red-dog-mine/.
3. The earth's open wounds: abandoned and orphaned mines.
4. Herz, N. 2020. As Arctic warming accelerates, permafrost thaw hits Red Dog mine with $20 million bill. Alaska Public Media. https://alaskapublic.org/2020/09/01/as-arctic-warming-accelerates-permafrost-thaw-hits-red-dog-mine-with-20-million-bill/.
5. Honua Ola Bioenergy. n.d. Environmental impact of solar panel manufacturing. Honua Ola Bioenergy. Accessed September 11, 2021. https://honuaolabioenergy.com/environmental-impact-of-solar-panel-manufacturing/.