environmentalist vs naturalist

environmentalist

noun
  • One who holds the view that environment, rather than heredity or culture, is the primary factor in the development of an individual or group. 

  • One who advocates for the protection of the environment and biosphere from misuse from human activity through such measures as ecosystem protection, waste reduction and pollution prevention. 

adj
  • Of, or relating to environmentalism. 

naturalist

noun
  • A person who believes in or advocates the tenets of philosophical or methodological naturalism. 

  • A creative artist who attempts to faithfully represent nature; an adherent of artistic naturalism. 

  • An expert in natural history or the study of plants and animals. 

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