Global warming has caused significant reef mortality around the world. The prognosis is that oceans will continue to warm until world leaders recognize the long-term consequences of turning a blind eye to the problem.
A few governments have tried to address the problem by building sea walls out of concrete, steel, coral rubble or sand bags. But these materials soon rust, corrode, collapse and need to be rebuilt. In contrast only breakwaters and reefs made of mineral accretion can provide permanent, cost-effective protection capable of keeping pace with rising global sea levels