ðɪs ʃˈoʊz ðæt wɛn ˌætməsfˈɛɹɪk tˈɛmpɹɪtʃɚɹ ˈɪŋkɹiːsᵻz ˈiː.dʒˈiː., dˈuː tə ɡɹˈiːnhaʊs ɡˈæsᵻz ðɪ ˈæbsəlˌuːt hjuːmˈɪdᵻɾi ʃˌʊd ˈɔːlsoʊ ˈɪŋkɹiːs ˌɛkspənˈɛnʃəli ɐsˈuːmɪŋ ɐ kˈɑːnstənt ɹˈɛlətˌɪv hjuːmˈɪdᵻɾi.
This shows that when atmospheric temperature increases (e.g., due to greenhouse gases) the absolute humidity should also increase exponentially (assuming a constant relative humidity).