DAVID HAY JONES / SCIENCE PHOTO LIBRARY DAVID HAY JONES / SCIENCE PHOTO LIBRARY
Carbon dioxide tank. Warning sign on a tank of liquid carbon dioxide. Carbon dioxide liquifies under pressure, and is extremely cold. If the tank is breached, frostbite and suffocation are two of the dangers. This tank is being used as part of an experiment into the effects of elevated levels of carbon dioxide on plant growth. Raised levels of carbon dioxide are thought to be due to increased burning of fossil fuels since the industrial revolution. Research indicates that plants bud earlier, are in leaf longer, and lose their leaves later, when carbon dioxide levels are increased. This research site is part of UMBS (the University of Michigan Biological Station), USA.
Model release not required. Property release not required.