In other words: The climate change mitigation effect of carbon sequestration by forests is partially counterbalanced in that reforestation can decrease the reflection of sunlight (albedo).
ɪn ˈʌðɚ wˈɜːdz: ðə klˈaɪmət tʃˈeɪndʒ mˌɪɾɪɡˈeɪʃən ɪfˈɛkt ʌv kˈɑːɹbən sˌiːkwɪstɹˈeɪʃən baɪ fˈɔːɹɪsts ɪz pˈɑːɹʃəli kˈaʊntɚbˌælənst ɪn ðæt ɹᵻfˌɔːɹɪstˈeɪʃən kæn dˈiːkɹiːs ðə ɹᵻflˈɛkʃən ʌv sˈʌnlaɪt ælbˈiːdoʊ.