The world’s oceans in 2021 grew to their warmest and most acidic levels on record, while melting ice sheets helped push sea levels to new heights, the World Meteorological Organization (WMO) said recently. Oceans saw the most striking extremes as the WMO detailed a range of turmoil wrought by climate change in its annual “State of the Global Climate” report.  The WMO report follows on the latest United Nations climate assessment, which warned that humanity must drastically cut its greenhouse gas emissions or face increasingly catastrophic changes to the world’s climate.

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