The word "polar" refers to something that is related to the North or South Pole. It can also describe a situation where there are two opposite or contrasting viewpoints or opinions. Full definition
In other words, the population of polar bears in this region have not been the subject of a population study. (climate-resistance.org)
The extended climate warming will drastically alter wind patterns, boost ocean surface temperatures and melt nearly all the sea ice in polar regions. (sciencedaily.com)