酸化 さんか炭素 たんそ吸収 きゅうしゅう げんでしょう
nisankatansono kyūshūge ndeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 二酸化炭素の吸収源

1. Likely a carbon sink.; Probably a carbon sink.

Polite
Presumptive
Conjecture