Rising concern about possible environmental damage from the active ingredients in sunscreens could have ripple effects on public health if it causes people to use less of them.

Researchers have long suspected that an ingredient in sunscreen called oxybenzone was harming corals, but no one knew how. A new study shows how corals turn oxybenzone into a sunlight-activated toxin.

Marine heatwaves will happen so often that reefs will struggle to weather successive bleaching events.

The ocean is naturally noisy. Here’s what all the buzz is about.

Healthy corals and mangroves break waves and dissipate their energy. Paired with unobtrusive hardened structures, they can provide powerful storm solutions.

During a 2015 heat wave, scientists watched as a coral reef died before their eyes. By the end of the century, almost all the world's corals will be gone if climate change continues at this pace.

During a 2015 heat wave, scientists watched as a coral reef died before their eyes. By the end of the century, almost all the world's corals will be gone if climate change continues at this pace.

Scientists watched in real time as rising ocean heat transformed the sprawling reef. It was a harbinger for ecosystems everywhere as the planet warms.

But these 'cold-water coral' are threatened by accelerating sea currents.

Humans have caused ecosystems to collapse on purpose for millennia, to grow food or build settlements. But unplanned collapses are a different matter.