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Biorock reefs — sunken steel frames connected to a low-voltage current — are giving coral a second chance at surviving humanity.

You may have heard that coral reefs are in trouble. Serious trouble.

A recent survey of Australia's Great Barrier Reef, the largest living structure on the planet, found 93 percent of the coral has been impacted by bleaching; a stark warning sign that the ecosystem is under tremendous environmental stresses. The potential underwater losses are so great, encompassing an area of the size of Scotland, that one leading coral researcher is already calling it the country's "biggest ever environmental disaster."

With the clock ticking, the race is on to find innovative ways to counter the mass deaths of coral reefs worldwide.

Every winter, the population of great white sharks (Carcharodon carcharias) that roams and feeds along the coastline from Central to Baja California disappears deep into the Pacific Ocean—swimming for 30 to 40 days to reach a point approximately halfway between Mexico and Hawaii.

There’s not a lot going for this particular spot in the ocean. It’s about 3000–5000 meters deep, and pretty barren as far as foodstuffs go. But the massive sharks—which can reach lengths of nearly 22 feet—stay there from about April to July, clustered in an area smaller than Panama.

Researchers in Hawaii have discovered three probable new species of fish while on an expedition in the protected waters of the Papahanaumokuakea Marine National Monument.

In a statement released Wednesday, National Oceanic and Atmospheric Administration officials said divers collected two previously unknown species of fish and filmed a third.

Shell Canada has contributed 860,000 hectares (8,625 km2) of offshore rights in the waters of Baffin Bay, near Lancaster Sound, to the Nature Conservancy of Canada, which then released the permits to the Government of Canada, with the goal of helping to create a national marine conservation area off the coast of Nunavut. That’s an area larger than Banff National Park.

Loss of ice and rising sea temperatures could impact 60 percent of the Adelie penguin colonies in Antarctica.

Polar bears have become the poster child for climate change, but at the opposite end of the globe another beloved animal is facing a major threat from the warming climate: penguins.

By the end of the century, 60 percent of the breeding habitat for Adélie penguins (Pygoscelis adeliae) could be too warm and too wet to host colonies, according to a new study in the journal Scientific Reports.

The Great Pacific Garbage Patch has become the stuff of legend. This hotspot of marine waste, created by the spiral currents of the North Pacific Gyre, has been described as a floating trash island the size of Russia. But when filmmaker Jo Ruxton visited the location, she found clear blue water, and a deep-rooted problem.

SEABROOK, N.H. (AP) — The cod isn't just a fish to David Goethel. It's his identity, his ticket to middle-class life, his link to a historic industry.

"I paid for my education, my wife's education, my house, my kids' education; my slice of America was paid for on cod," said Goethel, a 30-year veteran of these waters that once teemed with New England's signature fish.

But on this chilly, windy Saturday in April, after 12 hours out in the Gulf of Maine, he has caught exactly two cod, and he feels far removed from the 1990s, when he could catch 2,000 pounds in a day.

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