Scientists discovered broadcasting the sound of a healthy coral reef on underwater speakers in dead areas along the Great Barrier Reef resulted in life returning and thriving. Twice as many fish visited those areas with speakers compared to spots on the reef without speakers.
The collapse of the Soviet Union directly correlated with the resurgence of Cuba’s amazing coral reef. Without Russian supplied synthetic fertilizers and ag practices, Cubans were forced to depend on organic farming. This led to less chemical runoff in the oceans.