Coral reefs in Honolulu and other coastal areas are undergoing what experts say is the world's worst coral bleaching event.

Coral reefs around the world are in trouble due to our warming and acidifying oceans, but none are in quite so much trouble as Australia’s Great Barrier Reef. This year, it was hammered by a ...

It’s an iconic reef and most of it was dead,” she added ... normally due to changes in temperature. Coral reefs are among the most diverse ecosystems on Earth, providing habitat and food ...

open image in gallery Bleached and dead coral around Lizard Island on the Great Barrier Reef, located 270 kilometres (167 miles) north of the city of Cairns. Australia's famed Great Barrier Reef ...

The good news is, relatively speaking, that the rest of the 1,400-mile-long coral reef is alive -- severely threatened, yes, but not yet dead. A widely shared "obituary" in Outside magazine last ...

John "Charlie" Veron -- widely known as "The Godfather of Coral" -- is a renowned reef expert who has personally discovered nearly a quarter of the world's coral species and has spent the past 45 ...

"They're kind of hanging on. Part of it is alive, it's partly dead." And even if the coral dies, other reef organisms such as sponges and crusty, pink coralline algae live on. "The Australians ...

where dead coral and sand once blanketed the seabed, colorful fish now dart through an elaborate structure made of 3D-printed clay tiles. For six months, this artificial reef has been resting off ...

Ali Rogin (voice-over): If coral reefs die, so could nearly a quarter of all sea life, which feed millions and sustain industries from fishing tourism. But the good news is that corals are ...