Replying to @040Rosebud040 wear long sleeves, rock a hat & vote for politicians prioritizing climate change legislation (and testing/approving new sunscreen filters in the US) from smithsonian ocean, the truth about corals and sunscreen: “For concerned consumers the best course of action is to cover up during the midday hours and use an oxybenzone and octinoxate free sunscreen when needed. Mineral sunscreens that use titanium dioxide or zinc oxide can be a good choice, but know that nothing is truly “reef safe” as scientists are continually expanding our understanding of sunscreen toxicity. Even mineral sunscreens have additives and coatings, and many now use nano sized mineral particles to decrease the white hue left on the skin when applied. Any of these changes may alter the toxicity of a mineral sunscreen. Of course, the best chance coral reefs have of survival is to slow the progress of climate change, so choosing a local travel destination over a long, gas-guzzling international flight might just be the most reef friendly choice.”