The crossword solutions for the term IMPAIR, SPOIL are MAR. MAR is an acronym for 'Mitigate, Assess, Repair', which is a process used to identify and address environmental damage. This process is used to reduce the impact of human activities on the environment, such as pollution, deforestation, and climate change. The goal of MAR is to restore the environment to its original state, or as close to it as possible.