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All coral reefs could die by the end of the century, new research shows. Before-and-after photos show what that would look like.

Coral reefs cover less than 1% of Earth's surface, but provide a home to over 25% of all marine life. They could disappear within decades.
Bleached coral in Tahiti, French Polynesia, as seen in late May 2019.

We’ve put the heat equivalent of 3.6 billion Hiroshima bomb explosions into the oceans. The water was hotter last year than ever in recorded his...

Warmer oceans kill coral, fish, and seabirds, while supercharging hurricanes and melting polar glaciers.
A NOAA map from December 25, 2019 that shows areas of high risk for corals in the south Pacific. These high risk areas are correlated with spikes in sea temperature.

A giant ‘blob’ of hot water more than twice the size of California threatens the survival of fish and coral near New Zealand

A 386,000-square-mile chunk of the Pacific Ocean east of New Zealand is 10 degrees Fahrenheit warmer than average in what could be a marine heat wave.
Staff biologist Emily Williams cleans an aquarium full of Pillar coral (Dendrogyra cylindricus) a few days before the animals would successfully spawn in an aquarium for the first time at a Florida Aquarium facility in Apollo Beach, Florida, August 14, 2019.

Scientists reproduced Atlantic coral in a laboratory for the first time. Aquarium-grown coral could save America’s ‘Great Barrier Reef....

Techniques perfected on Pacific coral could help repopulate Atlantic coral reefs, too. Here's what the successful efforts look like.
A coral reef outside Tahiti, French Polynesia.

‘The saddest dive of my life’: A diver’s before-and-after photos reveal the death of a coral reef

As our planet and its oceans warm, coral reefs worldwide are experiencing bleaching — when the corals expel their food source and turn ghostly white.
Some of the corals here are already bleaching, losing their color, which is a sign that they're being stressed by heat or acidity.

Up to 50% of the world’s coral has died, but scientists are figuring out how to regrow reefs — here’s what the process looks like

Reefs cover less than 1% of the ocean floor, yet 25% of fish species spend some part of their lives in them, making corals essential to ocean health. Estimates of the overall economic value of reefs suggest they contribute between $30 billion and more than $375 billion to the world economy annually.

Hawaii is about to ban some of the most popular sunscreens because they could be killing off coral reefs

Hawaii is about to become the first US state to ban the chemicals oxybenzone and octinoxate in sunscreens, because they can bleach and kill corals and mess with their reproductive abilities.

Coral reefs provide crucial protection for coastal cities — without them, flood damage could double, a new study finds

Reefs help buffer against storm surge and waves that would otherwise damage coasts. Without living coral reefs, flooding damage around the world would double, a cost increase of $4 billion annually. Flooding could quadruple if the loss of reefs is combined with sea-level rise.

Half of the Great Barrier Reef has died since 2016 — but Australia’s $400 million attempt to save it doesn’t address the main proble...

Australia plans to spend more than $379 million to save the Great Barrier Reef. But experts think that since these initiatives don't fight climate change, they won't be enough to save the coral reefs.