The Arctic warming is getting a lot of attention this week, but I keep seeing references to the warming being twice as fast as the global mean, and that's not right.
It's more like 3 times the global mean.
It's more like 3 times the global mean.
GISTEMP Global mean warming 1970-2019: 0.95ºC (±0.1ºC, 95% CI)
Arctic warming (64ºN-90ºN): 2.94ºC (±0.4ºC, 95% CI)
Arctic warming (64ºN-90ºN): 2.94ºC (±0.4ºC, 95% CI)
Cowtan & Way Global mean warming 1970-2019: 0.92ºC (±0.09ºC, 95% CI)
Arctic warming (65ºN-90ºN): 3.0ºC (±0.4ºC, 95% CI)
Ratio: 3.3 ± 0.6
Arctic warming (65ºN-90ºN): 3.0ºC (±0.4ºC, 95% CI)
Ratio: 3.3 ± 0.6
Berkeley Earth Global mean warming 1970-2019: 0.93ºC (±0.09ºC, 95% CI)
Arctic warming (diff. lat ranges for comparison):
(60ºN-90ºN): 2.8ºC (±0.4ºC, 95% CI)
(64ºN-90ºN): 3.1ºC (±0.5ºC, 95% CI)
(66ºN-90ºN): 3.2ºC (±0.5ºC, 95% CI)
Ratio: 2.8±0.5/3.1±0.6/3.2±0.6
Arctic warming (diff. lat ranges for comparison):
(60ºN-90ºN): 2.8ºC (±0.4ºC, 95% CI)
(64ºN-90ºN): 3.1ºC (±0.5ºC, 95% CI)
(66ºN-90ºN): 3.2ºC (±0.5ºC, 95% CI)
Ratio: 2.8±0.5/3.1±0.6/3.2±0.6
