http://nymag.com/strategist/article/best-biodegradable-sunscreens.html
https://www.rei.com/learn/expert-advice/what-is-reef-safe-sunscreen.html
https://www.allure.com/gallery/coral-reef-safe-sunscreen-reviews
https://stream2sea.com/ingredients-to-avoid/
http://awesomeocean.com/conservation/happens-coral-reef-dies/
http://haereticus-lab.org/protect-land-sea-certification/
https://amaniearth.com/ocean-and-skin-safe-sunscreens/
https://storymaps.arcgis.com/stories/43d646a29c3c469584733ac54ef877d7
https://apeslcv.wordpress.com/media-and-interest/coral-reef-bleaching-can-the-reefs-ever-recover/