noun
carbon sink; carbon dioxide sink; CO2 sink
Environmental science term for a natural or artificial reservoir that absorbs more carbon dioxide than it releases.
森林は重要な二酸化炭素の吸収源です。
Forests are important carbon sinks.
海洋も二酸化炭素の吸収源として機能している。
The oceans also function as carbon dioxide sinks.
Compound of 二酸化炭素 (carbon dioxide) + の (possessive particle) + 吸収源 (absorption source/sink). A direct translation of the English term 'carbon sink'.