Loss of soil that is worn or carried away by wind or rain.

The area surrounding a city and affected by the city’s authority or commerce.

Gerald G. Marten

November 2001, 256 pp.

Social system evolution by a process of problem solving that includes broad community participation with monitoring to assess the effectiveness of human actions and corrective measures to bring the ac [..]

The beginning of agriculture about 10,000 - 12,000 years ago. Domestication and care of plants and animals as sources of food and other materials for human use.

Belief that plants, animals and some non-living parts of nature have spirits or souls.

Free of outside control.

The control of pest organisms by altering their environment or introducing natural enemies such as predators or pathogens.

A large-scale ecosystem associated with a particular climatic region.