It can, though it seems only as a temporary stop-gap measure. Coral gardening has had success in spots throughout the Pacific, where underwater “gardeners” can cultivate blooms of corals from small fragments taken from damaged reefs and eventually return cuttings from the new corals to re-colonize the old, with significant growth in about 2 years. This encourages the variety of fish to return–the reason coral are called the “rainforests of the sea”. Despite this success, though, even replanted corals are still in danger of bleaching–death–from rising temperatures and ocean acidification resulting from global warming. So if carbon emissions are curbed enough to stop this, coral gardening can replenish damaged reefs; if not, gardens can only help delay the inevitable.
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