autumn autumnal bare branch business estate factory grass hedge industrial industry leaf leaves modern sky tree unit walls workplace caterpillar decay Dirt engine gravel machine old rust tracks vehicle building classic craft craftsmen house Nyberg sawmill timber wood air atmosphere chimney climate contamination cranes emission energy environment exhaust fumes fume funnel gas industrial workplace plant pollute pollution production reek smoke smokestack steam toxic work clouds closing door entrance fall glass sunshine window abandoned abandoned workplace grey interior out of use rusted shelf shelves urban decay white