Scientists from six continents say a monitoring system could help protect coral reefs and fisheries around the world
A team of ocean scientists from six continents have made an urgent call for a global system to track the loss of oxygen from parts of the ocean and coastal waters that causes dead zones, where almost nothing can live.
Ocean heating caused largely by burning fossil fuels is making the problem worse, experts say, with serious consequences for communities, fisheries and ecosystems around the world.
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