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Critical Zone

The 'Critical Zone' is the earth's outer layer from the tree tops to the soil and groundwater systems. Professor Steve Banwart discusses the effects that the 'Critical Zone' has on the environment and our clean water supply which we need to survive and grow crops. The film highlights how interdisciplinary research and good working relationships amongst academics gives a better understanding of the pressures that human populations place upon the environment (http://www.researchatsheffield.co.uk).