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    great barrier reef

    This underwater photo taken on June 15, 2024 shows divers amongst bleached corals

    Fossil Fuels Blamed as 84% of World's Coral Reefs Hit by Worst Bleaching Event Ever Recorded

    "The magnitude and extent of the heat stress is shocking," said one marine scientist.

    Julia Conley
    Apr 23, 2025

    A year after scientists warned the world was seeing its fourth mass coral bleaching event, rising ocean temperatures fueled by greenhouse gas emissions have now devastated 84% of Earth's coral reefs—with likely knock-on effects for about a third of all marine species and 1 billion people whose lives and livelihoods are directly impacted by the health of the "rainforests of the sea."

    Coral Reef Watch at the U.S. National Oceanic and Atmospheric Administration (NOAA) released its latest data on Wednesday, showing the current bleaching event has become the most widespread on record, impacting reefs from the Indian Ocean to the Atlantic and Pacific.

    Keep ReadingShow Less
    News
    coral reefs
    scientist studies Great Barrier Reef

    Highest Ocean Heat in 400 Years Poses 'Existential Threat' to Great Barrier Reef

    "In the absence of rapid, coordinated, and ambitious global action to combat climate change, we will likely be witness to the demise of one of Earth's great natural wonders," the authors of a study in Science wrote.

    Edward Carver
    Aug 08, 2024

    The Great Barrier Reef recently experienced the highest ocean temperatures in at least four centuries and faces an "existential threat" due to repeated mass coral bleaching episodes, a study published Wednesday in Science found.

    The network of coral reefs off of Australia—the world's largest living structure—has faced five of the six hottest three-month periods of average surface temperature ever recorded just since 2016, each of which was accompanied by devastating coral bleaching.

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    News
    climate emergency
    a satellite map showing clouds over the California coast and Pacific Ocean

    False Climate Solution of Geoengineering Could Cause Heatwaves Thousands of Miles Away

    "We need more regional geoengineering modeling studies like this work to characterize these unintended side effects before they have a chance to play out in the real world," said the study's lead author.

    Brett Wilkins
    Jun 21, 2024

    A study published Friday found that a cloud engineering technique designed to cool parts of the western United States could inadvertently stoke heatwaves from North America to Europe, underscoring why many scientists reject geoengineering as a false climate solution.

    The study, published in the journal Nature Climate Change, concludes that marine cloud brightening (MCB)—"a geoengineering proposal to cool atmospheric temperatures and reduce climate change impacts"—in the "remote mid-latitudes or proximate subtropics" of the northern Pacific Ocean—would decrease "the relative risk of dangerous summer heat exposure by 55% and 16%, respectively."

    Keep ReadingShow Less
    News
    geoengineering

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