Marine Heatwave

Western Australia’s Coral Bleaching: A Climate Crisis Heartbreak

Unprecedented marine heatwaves, beginning in August 2024, have caused widespread coral bleaching and death across Western Australia’s reefs, from Ningaloo to the Rowley Shoals. Scientists report this as the worst bleaching event in the state’s history, with vast areas of once-vibrant coral now dead and covered in algae. While some coral may recover, the scale of mortality is devastating, impacting crucial ecosystems and fisheries. This event highlights the accelerating effects of climate change on marine environments, with temperatures reaching unprecedented levels across multiple reef systems simultaneously.

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Thousands of Dead Seabirds: A Climate Change Catastrophe

A study published in *Science* reveals that the 2014-2016 marine heatwave, “The Blob,” decimated Alaska’s common murre population, causing the deaths of an estimated 4 million birds—approximately half the total population. This resulted from starvation due to changes in fish populations caused by the heatwave. Significantly, murres populations show no signs of recovery a decade later. The findings highlight the devastating and widespread impacts of warming ocean waters on marine ecosystems.

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