Coral

The Great Barrier Reef is experiencing a major coral bleaching event right now

diver looking at bleached corals
Corals along large swaths of the Great Barrier Reef have lost their symbiotic algae, removing their vibrant colors and primary food supply, new observations show.

A severe coral bleaching event spurred by high ocean temperatures has struck the Great Barrier Reef for an unprecedented second time in 12 months, reveal aerial surveys released April 10 by scientists at James Cook University in Townsville, Australia. While last year the northern third of the reef was hardest hit, this time around the reef’s midsection experienced the worst bleaching. The two bleaching events together span around 1,500 kilometers of the 2,300-kilometer-long reef.

“It takes at least a decade for a full recovery of even…