Crucial Anthrospheric Infrastructure

Careful attention must be given to sustainability and the maintenance of environmental quality in the development of infrastructure. Examples include highly effective waste treatment systems with recovery of materials and energy from wastes, high-speed rail systems to replace inefficient movement of people and freight by private cars and by trucks, and electrical systems that use wind and solar power to the maximum extent possible. 

Critical infrastructure is a term applied to those parts of the infrastructure that, if destroyed or harmed, could have an immediate and devastating effect on the function of a society. The U.S. Department of Homeland Security defines critical infrastructure as including (but not limited to) telecommunications, energy, banking and finance, transportation, water systems, and emergency services, both governmental and private. Critical infrastructure is obviously of concern with respect to terrorist threats. 

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