brewing vs on the horizon

brewing

noun
  • The production of alcoholic beverages, such as beer, by fermentation; the process of being brewed. 

  • The quantity of a brew made in a single batch. 

  • The business or occupation of a brewer. 

  • The forming of a storm or the gathering of clouds. 

on the horizon

prep
  • Imminent. 

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