Ключевые слова: arctic, carbon, change, climate, cold, concept, conservation, contrast, crisis, deforestation, disaster, earth, ecofriendly, ecology, emission, energy, environment, fire, freeze, future, gas, glacier, global, greenhouse, hot, ice, impact, layer, melt, nature, ozone, planet, polar, pollution, regions, renewable, science, sustainability, temperature, thermometer, tropical, warming, weather,