Ключевые слова: apocalypse, armageddon, background, biohazard, burn, burning, business, catastrophe, caution, climate, concept, conservation, coronavirus, covid19, danger, disaster, earth, end, energy, environment, environmental, epidemic, fire, flame, global, globe, hell, hot, light, map, nature, pandemic, planet, pollution, power, protect, quarantine, red, smoke, space, sphere, symbol, terrorism, tree, virus, warm, warming, word, world,