environmental condition polar 2013-05-08T07:49:36Z A polar condition is an environmental condition in which an environmental system receives low, yearly solar irradiance per unit area, resulting in colder climatic conditions. On Earth, polar conditions are such that every month has average temperature lower than 10 degrees Celsius. ENVO ENVO:01000238 Note that this class refers to a climatic rather than a positional condition. ORCID:0000-0002-4366-3088 SPIRE:Polar SWEETRealm:Polarization frigid