"The biggest concern is that the South Pole and Antarctic plateau doesn't rise above freezing as of now, but if you track the patterns closer to the coast that's when you see melting".
The research was carried out by an worldwide team of scientists who examined weather station data, gridded observations and climate models to assess the impact of global warming at the South Pole.
The South Pole has warmed more than three times the global rate for the past three decades, a new study reports.
And this could be masking the heating effect of carbon pollution over the South Pole.
Kyle Clem, the lead researcher of the paper wrote for The Guardian that although the South Pole records average temperatures in between -60 degree C in winters to -20 degree C in the summers; it is not immune to warming. One factor in this trend, however, is warmer ocean temperatures in the tropical Pacific Ocean, which has lowered atmospheric pressure over parts of the Atlantic and in turn driven warmer air onto the plateau where the South Pole is situated.
Authors of the research said the natural warming trend was likely boosted by man-made greenhouse gas emissions.
"We have natural processes that are always going to be taking place amid global warming and human's influence on the climate system", Clem told CNN.
The authors of the study, published in the Nature Climate Change journal, attributed the change to a phenomenon known as the Interdecadal Pacific Oscillation (IPO).
The IPO cycle lasts roughly 15 to 30 years and alternates between a "positive" state, in which the tropical Pacific is hotter and the northern Pacific is colder than average.
A "negative" state, conversely, is where the temperature anomaly is reversed.
This drove greater convection and more pressure extremes at high latitudes, leading to a strong flow of warmer air right over the South Pole.
"Over the full range of all possible 30-year trends in climate models without anthropogenic greenhouse gases, the observed warming lies in the upper 0.1 per cent, meaning it is extremely rare and that the recent warming was probably pushed to such an extreme level by anthropogenic forcing".
"Our study reveals extreme and abrupt climate shifts are part of the climate of Antarctica's interior".