By: Raphaelle Flint, IUCN
With constant news of climate change causing coral reef bleaching or dieback, good news is hard to come by. A rare success story can be found on the island of Vamizi off the east coast of Africa, where cool currents, and local conservation efforts supported by IUCN, protect coral reefs from the effects of climate change.
We are in the midst of a third global bleaching event, now considered the longest and most widespread in recorded history. Mass bleaching happens when global warming-induced elevated sea surface temperatures cause stress to corals and if over a long enough time, mass die-offs. Indeed, in parts of the Indian Ocean, bleaching has affected coral by 60-90%. Situated in the northern Mozambique Channel, Vamizi is close to underwater channels bringing up cold water from the depths and cooling the surface waters so that corals here have a better chance of surviving climate change than elsewhere.…