Hobbit Disappearance Explained, Second-Hottest Year Looms, New Mpox Variant Found

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• 00:13

  For Scientific American Science Quickly, I'm Kendra Pirloz in for Rachel Feldman.

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  You're listening to our weekly science news roundup.

• 00:24

  First up,

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  the European Union's Copernicus Climate Change Service reported last Monday that 2025 is shaping up to be the second hottest year on record,

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  with data suggesting it'll tie with 2023 for runner-up status.

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  To learn more about what this means, we're talking to Andrea Thompson,

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  senior desk editor for Life Science here at Scientific American.

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  Hi Andrea.

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  Hi Kendra.

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  Thanks for joining us today.

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  So yeah, can you tell me more about what the European Climate Agency found?

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  Yeah,

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  so the agency looked at global average temperature through the end of November for the year and found that we're at about 1.48 degrees Celsius above pre-industrial,

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  which is roughly the last half of the 19th century.

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  And that puts us right now tied with second place for 2023 in terms of where we rank in the hottest years on record.

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  The record holders, of course, last year, 2024,

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  which was the first year to breach 1.5 degrees Celsius.

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  Why does that 1.5 degree Celsius number matter?

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  So that is the number that the Paris Climate Agreement, which was negotiated in 2015,

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  10 years ago, sort of set as an ambitious goal.

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