Reef fish called Chromis viridis (blue-green chromis) and Chromis margaritifer (bicolor chromis) swim among the staghorn coral (Acropora acuminata) at Palmyra Atoll National Wildlife Refuge in the Pacific.

World’s Largest Marine Protected Area Designated by President Obama

President Obama announced today that he’s creating the world’s largest marine protected area.

The proclamation — which Secretary of State John F. Kerry announced during an oceans meeting he convened in New York on Thursday — will mean added protections for deep-sea coral reefs and other marine ecosystems that administration officials say are among “the most vulnerable” to the negative effects of climate change.