Coral reefs across the globe are under stress from pollution and warming sea temperatures. Scientists predict that by 2050, 90 percent of the world's coral reefs will die. But a coral growing project on Fiji's Mamanuca Islands offers some hope.
With accelerated coral bleaching threatening to wipe out 90 percent of coral reefs by 2050, new techniques in sexual reproduction of climate-resilient coral could help restore declining reefs.
Plastic pollution and overfishing may currently be in the headlines. But rising CO2 emissions are also a key threat to the ocean that covers 71 percent of the planet, and a major challenge for future life on Earth.
Coral reefs are vital for the health of the planet, but they are systematically dying. In Fiji, a coral gardener is trying to save the world, one reef at a time.
As rising temperatures threaten the survival of many plants and animals, one option could be to move them to more suitable climes. It's a divisive idea among scientists and conservationists.
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