Not 2 Green
January 2nd, 2021 by Roy W. Spencer, Ph. D.
The Version 6.0 global average lower tropospheric temperature ( LT )
anomaly for December, 2020 was + 0.27 deg. C, down substantially from the
November, 2020 value of + 0.53 deg. C .
2020 ended as the 2nd warmest year in the 42-year satellite tropospheric temperature record at + 0.49 deg. C, behind the 2016 value of + 0.53 deg. C.
Cooling in December was largest over land, with 1-month drop of 0.60 deg. C, which is the 6th largest drop out of 504 months. This is likely the result of the La Nina now in progress.
The linear warming trend since January, 1979 remains at + 0.14 C / decade ( + 0.12 C / decade over the global-averaged oceans, and + 0.18 C / decade over global-averaged land ).