23.01.2006, Hamburg, DEU, GERMANY - Smokestack at sunset. (chimney, smokestack, petroleum refinery, petroleum, refinery, processing, chemical industry, industry, industrial, economy, chemical, chemicals, chemistry, industrial facility, industrial plant, industrialism, industrialization, industrialisation, smoke, black, ecology, environment, environmental, environmental issues, green issues, emission, emissions, climate, global warming, carbon dioxide, CO2, polluting, pollute, pollution, air pollution, evening, twilight, dusk, sunset, orange, symbol, symbolic, symbolical, nobody, horizontal) 00P060123D027CAROE.JPG [MODEL RELEASE: NOT APPLICABLE, PROPERTY RELEASE: NO (c) caro images / Muhs, http://www.caro-images.com, [email protected] - In case of using the picture for any non-editorial purpose, please contact the agency - the picture is subject to royalty!]