ambiance vs climate

ambiance

noun
  • A particular mood or atmosphere of an environment or surrounding influence. 

  • A secondary color of a polygon that becomes more pronounced with shading. 

climate

noun
  • The context in general of a particular political, moral, etc., situation. 

  • The long-term manifestations of weather and other atmospheric conditions in a given area or country, now usually represented by the statistical summary of its weather conditions during a period long enough to ensure that representative values are obtained (generally 30 years). 

How often have the words ambiance and climate occurred in a corpus of books? (source: Google Ngram Viewer )