(Carbon dioxide emissions) may be reduced.Logical formLearned from22 sentences. A percentage can be constituted-of-or-filled-with carbon.Logical formLearned from22 sentences. Controls can be on (carbon dioxide emissions).Logical formLearned from22 sentences. A radioactive isotope can be constituted-of-or-filled-with carbon.Logical formLearned from22 sentences. (Carbon monoxide) may be produced.Logical formLearned from22 sentences. Targets can be for reducing (carbon emissions).Logical formLearned from22 sentences. A growth may pertain-to (carbon dioxide emissions).Logical formLearned from22 sentences. (Carbon dioxide emissions) may undergo reductions.Logical formLearned from22 sentences. A (carbon dioxide) can be defective.Logical formLearned from22 sentences. Carbon may be stored.Logical formLearned from22 sentences. (Carbon dioxide emissions) may be blamed for global warming.Logical formLearned from22 sentences. Chains can be constituted-of-or-filled-with carbon.Logical formLearned from21 sentences. (Carbon compounds) can be complex.Logical formLearned from21 sentences. Carbon can be porous.Logical formLearned from21 sentences. Changes can be in (carbon dioxide levels).Logical formLearned from21 sentences.