Ключевые слова: air, automobile, automotive, black, car, carbon, change, climate, combustion, control, damage, emission, emissions, engine, environment, environmental, excessive, exhaust, footprint, fuel, fumes, gases, harmful, hazardous, impact, industry, materials, polluting, pollution, prevention, quality, smog, smoke, smokestack, tailpipe, toxic, traffic, transportation, vehicle, visible,