Ключевые слова: air, atmosphere, auto, automobile, car, carbon, cartoon, co2, concept, dioxide, dirty, drawing, eco, ecological, ecology, emission, emits, engine, environment, environmental, exhaust, flat, fuel, fumes, gas, gasoline, global, icon, illustration, label, motor, oil, pipe, pollute, pollution, road, sign, smog, smoke, symbol, toxic, traffic, transport, transportation, vector, vehicle, warming,