Greenland Ice sheet [in "State of the Climate in 2018"]

The 2018 Arctic land surface temperature was 1.2°C above
the 1981–2010 average, tying for third highest in the 118-year
record, following 2016 and 2017. June’s Arctic snow cover
extent was almost half of what it was 35 years ago. Across
Greenland, however, regional summer temperatures were
generally below or near average. Additionally, a satellite
survey of 47 glaciers in Greenland indicated a net increase in
area for the first time since records began in 1999. Increasing
permafrost temperatures were reported at most observation
sites in the Arctic, with the overall increase of 0.1°–0.2°C
between 2017 and 2018 being comparable to the highest rate
of warming ever observed in the region.