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conservationist vs. environmentalist

[kon-ser-vey-shuh-nist] / ˌkɒn sərˈveɪ ʃə nɪst /

noun

conservationists plural
  1. a person who advocates or promotes conservation, especially of natural resources.

[en-vahy-ruhn-men-tl-ist, -vahy-ern-] / ɛnˌvaɪ rənˈmɛn tl ɪst, -ˌvaɪ ərn- /

noun

environmentalists plural
  1. an expert on environmental problems.

  2. any person who advocates or works to protect the air, water, animals, plants, and other natural resources from pollution or its effects.

  3. a person who believes that differences between individuals or groups, especially in moral and intellectual attributes, are predominantly determined by environmental factors, as surroundings, upbringing, or experience (opposed to hereditarian).