Dennis Hollier The Washington Post

Coral reefs are one of the planet's keystone habitats, as rich in species as the rain forest. But they're even more vulnerable to climate change and the warm, acidic ocean conditions it is creating.

Coral reefs are one of the planet's keystone habitats, as rich in species as the rain forest. But they're even more vulnerable to climate change and the warm, acidic ocean conditions it is creating.