Energy: the ability to do work

Energy is the essence of the I = PAT formula.

Development and use of energy involves land, air, water and all human societies.

This section deals primarily with energy resources, including alternative energies.

Regarding energy supply, there are two opposing schools of thinking:

1. Energy resources are either not a problem or that there are ample resources to continue until technology provides substitutes. The status quo growth model.
2. Energy resources are in decline and patterns of energy use and culture must accommodate the decline.

With emphasis on position #2, papers representing both schools of thought are included.