Ключевые слова: air, animal, antarctic, atmosphere, background, change, climate, crisis, danger, day, degree, dirt, drought, dry, dust, earth, eco, ecosystem, education, energy, environmental, factory, flame, forecast, future, gas, global, graphic, green, greenhouse, heat, hot, land, landscape, natural, ocean, ozone, people, pole, pollution, protection, recycle, snow, sustainability, symbol, toxic, tree, warm, water, wildlife,