It's a harshenvironment that tests you mentally and physically with temperatures dropping to staggering degrees of cold.
The Sun (2012)
Four million people call the Arctic, the harshestenvironment on Earth, home.
Times, Sunday Times (2011)
Definition of 'environment'
environment
(ɪnvaɪərənmənt)Explore 'environment' in the dictionary
countable noun [usually singular]
Your environment consists of the particular natural surroundings in which you live or exist, considered in relation to their physical characteristics or weather conditions.