Polar plot of global mean monthly temperature anomaly (land and sea surface) for the period 1880-present.
Black circle represent 0 anomaly, center and circumference of plotting area represent -1.5 and +2.0 degrees Celsius anomalies respectively.
All data obtained from GISS Surface Temperature Analysis website
Polar plot of global sea ice area (land and sea surface) for the period 1978-present.
Center and circumference of plotting area represent 12 - 24 million km2 respectively.
All data obtained from EUMETSAT OSI SAF