SPF 30+: Goldman says that sunscreens with an SPF 50+ aren’t necessary. SPF 50+ protects your skin from about 98% of the sun’s rays, and no product provides 100% protection. If you only buy ...

If the bleaching is severe and long-lasting, the coral can die. By Alexa St. John, Associated Press. Science Aug 09. The race to rescue corals from a blistering marine heat wave.