Kaja Kallas· No determinado

Confirmed

The Arctic is warming 3 to 4 times faster than the global average

Omissions

• The specific multiplier varies by time period measured and methodology. Older IPCC assessments (pre-2022) typically cited Arctic warming at approximately 2 to 2.5 times the global average, while more recent studies (Rantanen et al., 2022) find ratios approaching 4 times. The Arctic Monitoring and Assessment Programme (AMAP) reports warming at approximately 3 times the global rate.

Sources

• PrimaryIPCC Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC) - Chapter 3: Polar regionsDocuments Arctic amplification phenomenon with surface air temperatures in the Arctic warming at more than double the global average since the mid-20th century (older assessment from 2019)
• AcademicNature Communications - The Arctic has warmed nearly four times faster than the globe since 1979Arctic warming ratio of 3.8 times (nearly four times) the global average since 1979, based on observational data showing Arctic temperatures rising at 0.73°C per decade compared to 0.19°C per decade globally
• SecondaryCarbon Brief - The Arctic has warmed 'nearly four times faster' than the global averageRecent Arctic Monitoring and Assessment Programme (AMAP) report states the Arctic is warming three times faster than the global average