The glory of the world’s oceans could be restored within a generation, according to a major new scientific review. It reports rebounding sea life, from humpback whales off Australia to elephant seals in the US and green turtles in Japan. Through rampant overfishing, pollution and coastal destruction, humanity has inflicted severe damage on the oceans and its inhabitants for centuries. But conservation successes, while still isolated, demonstrate the remarkable resilience of the seas. The scientists say there is now the knowledge to create an ocean renaissance for wildlife by 2050 and with it bolster the services that the world’s people rely on, from food to coastal protection to climate stability. The measures needed, including protecting large swathes of ocean, sustainable fishing and pollution controls, would cost billions of dollars a year, the scientists say, but would bring benefits 10 times as high. However, the escalating climate crisis must also be tackled to protect the oceans from acidification, loss of oxygen and the devastation of coral reefs. The good news, the scientists say, is a growing awareness of the ability of oceans and coastal habitats such as mangroves and salt marshes to rapidly soak up carbon dioxide and bolster shorelines […]

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