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These chemicals disrupt the symbiotic relationship between coral and algae, says Downs. The coral larva envelops in its own skeleton, where it falls to the bottom of the sea and dies.
"You can have an El Niño climate change impact on a coral reef, say that it kills 40% of the coral," Downs said. "But if you have swimmers with solar pollution, you're not going to have new generations to come in. So you'll see the slow decline of coral reefs in the area and then you get an underwater landscape, sorry "
But not everyone supports the ban.
"This must be seen in the broader picture of the large amount of evidence available that shows that there are other more important causes of coral decline such as global warming, overfishing, pollution and runoff ". Downs argued that chemicals in sunscreen reduce the resilience of coral to the impacts of climate change.
Detractors of the bill also claim that banning these ingredients in sunscreen Hawaii will reduce choice, which will result in a reduction in the use of sunscreen, a major problem of public health.
"I think it's a challenge for dermatologists Dr. Henry Lim, a dermatologist at Henry Ford Hospital in Detroit and former president of the association as well as the American Academy of Dermatology. "The problem is that we know that excessive exposure to the sun is associated with damage to the skin, including what we call aging photo, which is the formation of wrinkles, but especially the development skin cancers. "
According to Lim, the approved UV filters are a challenge, but there are alternative ingredients with different sun protection mechanisms, including zinc oxide and titanium dioxide, a said Mr Lim, who understands the rationale for the bill, the implementation of these restrictions as an opportunity for doctors to redouble their efforts to educate the public about the importance of sunscreen: stay in the shade at the outside wear appropriate clothing, hats and sunglasses; and wear sunscreen only on exposed parts of the body.
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