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Another Record: Ocean Warming Continues through 2021 despite La Niña Conditions

Study key findings & significance

  • The world's oceans are hotter than ever before, continuing their record-breaking temperature streak for the third straight year.
  • The warming pattern is mainly attributed to increased anthropogenic greenhouse gas concentrations, offset by the impact of aerosols.
  • The upper 2,000 meters (6,562 feet) of Earth’s oceans absorbed more than 227 excess zettajoules of energy, compared with the 1981-2010 average.
Rose Andreatta

Last updated January 8, 2025

Marshall Fire December 2021

An urban firestorm fueled by hurricane-force winds incinerated nearly 1,000 homes and structures in and around Boulder, Colorado in just one day, making it the most destructive wildfire in the state's history. Climate change, primarily caused by the extraction and combustion of fossil fuels, supercharges fires like the Marshall Fire through increased temperatures and exacerbated drought. In all, an estimated 6,000 acres were burned by the fire.

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