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Record heat creating fears of a mass coral bleaching event in Great Barrier Reef park

Studies of sea surface temperatures over the Great Barrier Reef are pointing to a significant bleaching event in the coming months causing back-to-back damage following last summer’s event.

This is the warmest November on record over the reef in the past thirty-seven years and the peak temperatures of summer are not expected to be reached until February, according to the U.S. government’s National Oceanic and Atmospheric Administration (Noaa). Sea surface temperatures are two degrees centigrade higher than usual which strongly suggests another coral bleaching event is imminent.

The Noaa forecast suggests that by late January large parts of the northern reef will probably see significant bleaching and enough heat to cause coral death.

Rising ocean temperatures driven by human emissions of greenhouse gases mostly from burning fossil fuels typically cause mass bleaching events. In addition, petrochemicals found in many sunscreens contribute to weaken already fragile corals and cause abrupt and complete bleaching of hard corals, even at extremely low concentrations. Only mineral based sunscreens, like Coral Sure Sunscreen, are considered safe for use around aquatic life.


EPO9 was formed four years ago by a collection of surfers, scuba divers, snorkelers, swimmers and outdoor enthusiasts who worship the sun but really care about, and want to protect, the oceans and marine environment which brings us so much joy. Eponine Labs, LLC was incorporated in June 2022. Its mission is to manufacture a sunscreen that is truly non-toxic to the marine eco-system and ​will afford the user the highest standard of skin protection from the sun's harmful UV rays.

People chose Coral Sure Sunscreen for its broad spectrum protection and non-toxic, moisturizing properties. Learn more at

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