Coral reefs, worth an estimated $9.8 trillion a year to humanity, are in far worse shape than previously realized. A massive ...

Harmful bleaching of the world's coral has grown to include 84% of the ocean's reefs in the most intense event of its kind in recorded history, the International Coral Reef Initiative announced ...

Rachel Feltman: Picture a coral reef. Even if you’re not an avid snorkeler or diver, chances are that movies and childhood trips to the aquarium have given you some sense of how vibrant and lively ...

As coral bleaching and deaths become more widespread globally, experts show that over a third of restoration projects fail and might never be scalable enough to have positive effects on reef ...

Coral reefs, once thriving underwater cities teeming with life, now face an unprecedented crisis. Scientists have declared that coral reefs have become the first major environmental system on Earth to ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Beneath a cloak of darkness, illuminated only by glow sticks and red-filtered flashlights, researchers waited underwater off Key Largo hoping to witness one of the rarest events of sex in the sea.