Ключевые слова: air, background, black, change, chimney, climate, concept, contamination, danger, design, earth, ecology, editable, element, environment, environmental, factory, flat, global, graphic, icon, illustration, industrial, industry, isolated, issue, line, lineart, manufacturing, minimal, monochrome, outline, pictogram, plant, pollution, problem, responsibility, sad, sign, simple, smoke, stroke, symbol, toxic, unsustainable, warming, waste, white,