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Humans have caused 1.5 °C of long-term global warming according to new estimates

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399 points gmays | 3 comments | 17 Nov 24 18:49 UTC | HN request time: 0.42s | source
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brap ◴[17 Nov 24 19:12 UTC] No.42166243[source]▶
That seems… very low?
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1. spencerchubb ◴[17 Nov 24 19:50 UTC] No.42166578[source]▶
1.5 degrees celsius is 10% of the global average temperature. That is, to put it mildly, a shit ton of a difference
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2. mr_mitm ◴[17 Nov 24 20:12 UTC] No.42166775[source]▶
If doesn't make sense to take the percentage of a quantity in units with an arbitrary reference point. In Kelvin it would be about 0.5%.
3. wtcactus ◴[17 Nov 24 21:17 UTC] No.42167367[source]▶
Celsius is not an absolute scale. You need to use Kelvin for that meaning that a 1.5C increase is close to a 0.5% increase in global average temperature.