Below you can find sources and references for blog post articles:
Sunscreen March 2019:
https://oceanservice.noaa.gov/facts/coral_protect.html
https://www.ewg.org/skindeep/ingredient/704372/OXYBENZONE/#
https://www.ncbi.nlm.nih.gov/pubmed/29086472
https://www.consumerreports.org/sunscreens/the-truth-about-reef-safe-sunscreen/