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Articles on Oceans 21

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Marine life is fleeing the equator to cooler waters. History tells us this could trigger a mass extinction event

Climate change has already made tropical oceans too hot for some marine species to survive. As they flee towards the poles, the implications for ecosystems and human livelihoods will be profound.
Jeremiah Kiarie rounds up tilapia at Green Algae Highland fish farm in central Kenya on April 29, 2017. Tony Karumba/AFP via Getty Images

Farming fish in fresh water is more affordable and sustainable than in the ocean

Aquaculture is a growing source of healthy protein for millions of people around the world, but there are big differences between farming fish on land and at sea.
Mangroves, like these in Madagascar, provide a range of benefits, including protection from storms and the prevention of coastal erosion. (Louise Jasper/Blue Ventures)

New mangrove forest mapping tool puts conservation in reach of coastal communities

Despite their enormous value, mangroves are being removed at an alarming rate. A new tool aims to help communities reverse mangrove loss and tap into conservation programs and funding.
Scientists have found widespread evidence of microplastics in the Arctic Ocean. This could further stress the fragile Arctic ecosystem and the food it provides to people living there. (Shutterstock)

They’re everywhere: New study finds polyester fibres throughout the Arctic Ocean

Microplastic pollution is a global issue, but where do they come from and how are they transported across the ocean? A new study finds polyester microfibres are common throughout the Arctic Ocean.

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