A byproduct may pertain-to (carbon dioxide emissions).Logical formLearned from8 sentences. Increases can be in (nitrogen oxide emissions).Logical formLearned from8 sentences. Gasoline may undergo emissions.Logical formLearned from8 sentences. Some developed countries may account for some percent of emissions.Logical formLearned from8 sentences. Emissions of gases may be reduced.Logical formLearned from8 sentences. One-fourth may pertain-to (carbon dioxide emissions).Logical formLearned from8 sentences. Emissions may be detected.Logical formLearned from8 sentences. Limits can be on (car emissions).Logical formLearned from8 sentences. A target can be for emissions.Logical formLearned from8 sentences. A difference can be between emissions.Logical formLearned from8 sentences. A (radio emission) may pertain-to a planet.Logical formLearned from8 sentences. A (radio emission) can be faint.Logical formLearned from8 sentences. Electromagnetic waves may undergo an emission.Logical formLearned from8 sentences. An emission can be combined.Logical formLearned from8 sentences. (Nitrogen oxide emissions) may undergo a reduction.Logical formLearned from8 sentences.