A slab of rock overhanging an underwater canyon near the northeast border of Australia threatens to generate a tsunami when it eventually breaks off, researchers warned Friday.
Leave it to global warming to ruin both a day at the beach and an entire oceanic ecosystem. Researchers are blaming the environment’s public enemy No. 1 as well as rising seawater acidity for what has been the slowest coral growth rate at the Great Barrier Reef in more than 400 years.