Sydney’s Bald Reef Gets a Seaweed Transplant

Seaweed transplants could help revive an underwater forest off the coast of Sydney, Australia, that was wiped out by sewage dumping decades earlier, a new study suggests.
Rio’s Olympic Waters Blighted By Heavy Pollution

With the Sugar Loaf Mountain perched at its entrance, Rio’s de Janeiro’s stunning Guanabara bay enchanted navigators in centuries past, but today its natural beauty conceals a modern hazard…