Is your sunscreen bad for the planet? On this episode of The Big Blue Marble, we slather on the research with Dr. Craig Downs, a forensic ecotoxicologist.  According to Downs, more than 100 million tonnes of sunscreen a year enter coastal areas around the world, and when it does, especially in the coral reef system, “it impacts all the organisms there.”  The good news is, toxic chemical bans found in certain sunscreens are now beginning, find out how you can practice “safe sun” without harming the seas.