Yesterday was the day that NASA, NOAA, the Hadley Centre and Berkeley Earth delivered their final assessments for temperatures in Dec 2020, and thus their annual summaries. The headline results have received a fair bit of attention in the media (NYT, WaPo, BBC, The Guardian etc.) and the conclusion that 2020 was pretty much tied with 2016 for the warmest year in the instrumental record is robust.
There is some more background here:
A bit more background on the temperature anomalies in 2020, which were statistically tied with 2016 for the warmest year in the instrumental record. pic.twitter.com/y3L6vgVnc3