Articles on Coral reefs

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Healthy staghorn coral were crucial builders of Florida’s coral reef. Today, few survive there. Maya Gomez

2 iconic coral species are now functionally extinct off Florida, study finds – we witnessed the reef’s bleaching and devastation

The crucial reef-building corals were decimated by a marine heat wave in the Florida Keys. Can advances in restoration help them recover?
Massimo Valicchia/NurPhoto via Getty Images

For the first time, we linked a new fossil fuel project to hundreds of deaths. Here’s the impact of Woodside’s Scarborough gas project

The results challenge claims that the climate risks posed by an individual fossil fuel project are negligible or cannot be quantified.
Meltwater runs across the Greenland ice sheet in rivers. The ice sheet is already losing mass and could soon reach a tipping point. Maria-José Viñas/NASA

What are climate tipping points? They sound scary, especially for ice sheets and oceans, but there’s still room for optimism

A report warns that coral reefs may have reached their tipping point, and ice sheets, ocean currents and the Amazon are at growing risk. But, what does that actually mean?
Weedy corals colonise a dead reef structure in the Turks and Caicos Islands. Lauren T Toth

Caribbean coral reefs are running out of time to keep up with rising seas – new study

Coral reefs will stop growing and many will start to erode if global warming hits 2°C, according to a new study of 400 sites.
A diver conducts a ‘manta survey’ of a coral reef. Australian Institute of Marine Science

World’s biggest coral survey confirms sharp decline in Great Barrier Reef after heatwave

The latest report from Australia’s tropical marine research agency shows hard corals on the Great Barrier Reef have been hit hard by an extreme marine heatwave.
An Acropora coral during a spawning event. Coral Brunner/Shutterstock

The great coral reef relocation

Heatwaves in the tropics are pushing corals to the brink. Could reefs pop up elsewhere?
Rainbow and midnight parrotfish feed at Alacranes Reef in the Gulf of Mexico. Lorenzo Alvarez-Filip

Parrotfish support healthy coral reefs, but they’re not a cure‑all, and sometimes cause harm

A widely held view in ocean conservation asserts that parrotfish are key to healthy coral reefs. But evidence suggests that the relationship is more complicated.

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