Hawaii just became the first state to ban certain sunscreens as a measure to protect the state's essential coral reefs. Hawaii Gov. David Ige signed a bill on Tuesday, July 3, banning the sale of sunscreens containing two chemicals, oxybenzone and octinoxate, believed to harm coral reefs and other marine ecosystems. State lawmakers passed the legislation in early May. Senate Bill 2571 prohibits the sale and distribution of non-prescribed sunscreens on the islands that contain oxybenzone or octinoxate, which can be deadly for coral larvae. The ban will not be applied to medically prescribed sunscreens or makeup that contain oxybenzone...