炭たん素そ予よ算さんたんそよさんMeanings1nouncarbon budgetThe maximum cumulative amount of CO₂ emissions allowed to keep global warming below a given temperature target. Used in climate science and policy.パリ協きょう定ていでは、世せ界かい全ぜん体たいの炭たん素そ予よ算さんを守