Urban metabolism studies have been established for only a few cities worldwide, and difficulties obtaining adequate statistical data are universal. Constraints and peculiarities call for innovative methods to quantify the materials entering and leaving city boundaries.

Systems dynamics, cellular automata, agent-based modeling, and network analyses have been used in population, land use, and transport planning models.

The modern world increasingly reflects human activities, to the point that many scientists are referring to this era as the

This article introduces a multiagent simulation framework for investigating the emergence of niche markets for environmentally innovative products. It clarifies how consumer preferences, business strategy, and government policy interact during market development. The framework allows investigation of the effects of uncertainty and agents' corresponding coping strategies.

A method is presented that allows for a life cycle assessment (LCA) to provide environmental information on an energy infrastructure system while it evolves. Energy conversion facilities are represented in an agent-based model (ABM) as distinct instances of technologies with owners capable of making decisions based on economic and environmental information.

Two objectives are pursued in this article. First, from a methodological perspective, we explore the relationships among the constructs of complex adaptive systems, systems of systems, and industrial ecology.

Emissions derived from human digestion of food and subsequent excretion are very relevant from a life cycle perspective, and yet they are often omitted from food life cycle assessment (LCA) studies. This article offers a simple model to allocate and include these emissions in LCAs of specific foodstuffs.

The dependency on carbon-based materials and energy sources and the emission of greenhouse gases have been recognized as major problems of the 21st century. Companies are central to the effort to grapple with these issues due to the large material flows they process and their capabilities for technological innovation.

Sub-Saharan Africans cannot begin to help pioneer the future ecological economy today without first studying and working in Western universities, research institutes, and corporations any more than Asians could have helped in pioneering the future information economy three decades ago without first studying and working in such Western institutions.

A highly successful redevelopment of an army base closed as part of the U.S. 1993 Base Realignment and Closure (BRAC) program, Devens