Climate Crisis Has Tripled Length of Deadly Ocean Heatwaves, Study Finds

A recent study has found that the climate crisis has tripled the length of ocean heatwaves, leading to devastating consequences for marine ecosystems and coastal communities. Half of the marine heatwaves since 2000 would not have occurred without global heating caused by burning fossil fuels. The heatwaves have become not only more frequent but also more intense, with an average increase of 1C, but reaching up to 5C hotter in some areas. This research is the first comprehensive assessment of the impact of the climate crisis on ocean heatwaves. Hotter oceans absorb fewer carbon dioxide emissions, exacerbating the problem. The consequences of ocean heatwaves are far-reaching, including the destruction of critical ecosystems like kelp forests and coral reefs. Warmer oceans also provide more energy to strong storms that affect people living in coastal and inland areas. The study's lead author, Dr. Marta Marcos, described the impact of ocean heatwaves on underwater ecosystems, such as sea grass meadows, as "horrible." The research reveals profound changes in the world's oceans due to the climate crisis. Overall, the study highlights the urgent need to address the climate crisis to mitigate the devastating effects of ocean heatwaves.