酸化 さんか炭素 たんそ吸収 きゅうしゅう げんであれば
nisankatansokyūshūgendeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 二酸化炭素吸収源

1. If it were a carbon sink; If it is a carbon sink

Ba Conditional