Human activity is the most important agent in creating environmental change, a study commonly found in human ecology which can claim a central place in how environmental problems are examined and addressed.
hjˈuːmən æktˈɪvᵻɾi ɪz ðə mˈoʊst ɪmpˈoːɹtənt ˈeɪdʒənt ɪn kɹiːˈeɪɾɪŋ ɛnvˌaɪɹənmˈɛntəl tʃˈeɪndʒ, ɐ stˈʌdi kˈɑːmənli fˈaʊnd ɪn hjˈuːmən ɛkˈɑːlədʒi wˌɪtʃ kæn klˈeɪm ɐ sˈɛntɹəl plˈeɪs ɪn hˌaʊ ɛnvˌaɪɹənmˈɛntəl pɹˈɑːbləmz ɑːɹ ɛɡzˈæmɪnd ænd ɐdɹˈɛst.