Lawmakers in the American state of Hawaii have passed a bill banning sunscreens that can harm coral reefs. If the state’s governor signs the bill, Hawaii would become the first state in the country to pass such a law. The bill would ban the sale of sun care products that contain the chemicals oxybenzone and octinoxate. Scientists say the two substances can harm coral, an important part of the ocean ecosystem and popular with tourists. The chemicals are found in more than 3,500 sunscreens worldwide, including Coppertone and Banana Boat products.