NORM THOMAS / SCIENCE PHOTO LIBRARY NORM THOMAS / SCIENCE PHOTO LIBRARY
Chimney. White plume billowing out from a chimney at a fossil fuel power station. The plume is white because water vapour in the hot exhaust gas is condensing as it makes contact with the cooler air. The water vapour itself is harmless but invisible components within it are not. A major component of the exhaust fumes is carbon dioxide; this gas traps infra-red light in the atmosphere and so has been linked with global warming. The exhaust gases also contain sulphur oxides. This gas dissolves in clouds and rainwater to form sulphuric acid and is a major cause of acid rain.
Model release not required. Property release not required.