Burnt trees during a wildfire in Celista, British Columbia, Canada.
Photographer: Cole Burston/BloombergClimate Politics
UN Declares 2023 Hottest Year Ever as Crucial Climate Summit Starts
This is the warmest year recorded in human history, UN Secretary-General António Guterres tells delegates at the COP28 climate conference in Dubai.
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The planet has been so hot in 2023 that even before the year ends, the World Meteorological Organization has declared it the warmest ever recorded.