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    After taking off from Brisbane just after dawn, our tiny propeller plane skims miles of Queensland coastline before heading north out over the crystal-clear waters of the Coral Sea –— revealing the beauty of this vast reef system beneath its surface.

    Our destination is Lady Elliot Island, a remote coral cay perched on top of the southern end of the Great Barrier Reef.

    Pilot Peter Gash is the island’s leaseholder, and his family has been operating tours to the island for nearly 20 years.

    «We made it our life’s work,» Gash said. «My wife and I married, I went and learned to fly airplanes so I could bring people here.»

    Gash negotiates his small aircraft through bumpy crosswinds to land safely on the short, grass-covered runway.

    Decades ago, the island was a barren landscape devoid of vegetation following years of mining for nutrient-rich seabird waste — known as guano — in the late 1800s.

    The Gash family set about bringing this island back to life, planting around 10,000 native species of trees to create a man-made forest and nature reserve, and using solar power, batteries and a water desalination system to support a small eco-tourism resort.

    The island is now home to up to 200,000 sea birds, which have helped to regenerate the coral reef fringing the island.

    «If we can recover this small place, this little circle, we can recover this big place — this whole planet,» Gash said. «That’s what really drives me, is to try and encourage people to know that it’s not hopeless, it can be done.»

    Gash takes CNN on a snorkel tour, diving down to explore the underwater rainforest in his backyard. The vibrant coral colonies burst with color and teem with hundreds of species including manta rays, reef sharks, clown fish and turtles.

    When the island’s greatest enthusiast resurfaces to draw a breath, even he can’t hide his shock at the extent of the coral bleaching.

    «It’s worse than I thought it would be,» Gash said, as he treaded water on the surface. «I just pray the corals will come back next year.»

    ‘Silent as a graveyard’

    Beyond the Great Barrier Reef, трипскан сайт the massive marine heatwave sweeping the globe has already impacted some of the world’s most famous coral reefs — including those in the Red Sea, Indonesia and the Seychelles.

    Last year, the soaring ocean temperatures also caused widespread destruction of corals in the Caribbean and Florida — and US experts are predicting further damage there this coming summer.

    «I am becoming increasingly concerned about the 2024 summer for the wider Caribbean and Florida,» said Derek Manzello, the coordinator for NOAA’s Coral Reef Watch program.

    «It won’t take much additional seasonal warming to push temperatures past the bleaching threshold.»a full moon in the sky over a city

  • tripscan

    ‘Save the Whales’ was a shining success. Now can humpbacks save us from ourselves?

    Antarctic Peninsula

    CNN

    About 15 billion miles from where you sit, two 12-inch golden records are hurtling through outer space with multilingual greetings to the universe from 55 humans and one humpback whale.

    With a playlist curated by astronomer Carl Sagan and inspired by the way humpbacks use low frequencies to send messages across entire oceans, they were launched on NASA’s two Voyager probes in 1977.

    «As much as the sounds of any baleen whale, it is a love song cast upon the vastness of the deep.» Sagan wrote of the golden records.

    And, since 95% of the planet’s biggest species had been harpooned to oblivion at the time, it could’ve easily been the kind of love song that ends in tears.

    But almost a half-century later, the comeback of the humpback is arguably the greatest success story in the history of conservation. While artificial intelligence could one day help us understand the lyrics of those songs in space, new science is putting a dollar value on the life of a whale — and finding they provide so much more than blubber and song.

    «They’re literally seeding the upper parts of the ocean with the opportunity for plant life to grow,» veteran marine ecologist Ari Friedlaender explained while bobbing on a Zodiac raft off the Antarctic Peninsula. «And that’s what feeds the food for whales, birds, seals — everything. They’re basically farmers recycling nutrients and there’s more food available to them the more they’re around.»

    CNN followed an international team of whale experts throughout 2023, from Friedlaender’s lab at the University of California at Santa Cruz to humpback breeding grounds off the Pacific coast of Colombia, and their feeding grounds at the bottom of the world. While Friedlaender has been collecting whale data for more than 25 years, his work found new relevance after a team of economists from the International Monetary Fund estimated a single baleen whale provides about $2 million worth of Earth services, both in life and death.

    When baleen whales gulp vital nutrients like iron and nitrogen from the depths of the sea and defecate at the surface, they serve as the ocean’s biggest fertilizer pumps — feeding the tiny phytoplankton which produces half the world’s oxygen and captures as much planet-warming CO2 as four Amazon rainforests while holding up the bottom of the food chain.

    «That’s the gold,» smiled Chris Johnson, трипскан вход the global lead of whale and dolphin conservation at the World Wildlife Fund, as he held up a whale stool sample jarred from the chilly Antarctic water.

    «We have the poo. Repeat, we have humpback poo,» Eva Prendergast, the British polar scientist at the helm, radioed back to the Ocean Endeavor, the cruise ship serving as base.

    The team interacted with dozens of whales over the course of four days in Antarctica. They used specialized camera drones to measure body size and suction-cupped tags slapped onto the animals’ backs with a long pole to record the way they move while capturing whale’s-eye-view video.

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