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2019 was the second hottest year on record.

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Globally, temperatures were more than 2°F (1.11°C) warmer than the late 19th Century.

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During the northern summer, water pooled on top of the Greenland Ice Sheet as ice melted.

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Large, intense fires burned from Alaska and Siberia to Australia.

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This continues a long-term trend of warming around the world, driven by rising greenhouse gas levels.

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The last decade was the warmest on record.