Ключевые слова: 21, 2015, arrest, car, change, climate, concept, conference, cop, cop21, crime, danger, earth, ecological, ecology, emergency, enforcement, environment, environmental, future, generation, hope, law, line, nature, nobody, paris, planet, plastic, police, restricted, safety, scene, security, services, sign, silhouette, sun, sunrise, sunset, symbol, tape, text, urban, vehicle, warning, white, word, written, yellow,