Ключевые слова: abstract, atomic, background, black, bomb, border, caution, concept, danger, dangerous, design, dirty, disaster, earth, ecology, energy, environment, environmental, frame, global, grunge, grungy, hazard, icon, illustration, industrial, industry, isolated, metal, natural, nature, nuclear, old, orange, pollution, power, protection, radiation, radioactive, reactor, risk, rusty, safety, sign, symbol, technology, toxic, warning, world, yellow,