Well before the 1973 oil price
shock, analysts frequently forecasted future energy market conditions
(e.g. see Putnam 1953 and Schurr and Netschert 1960). Today the U.S.
Energy Information Administration (EIA) and the International Energy
Agency (IEA) routinely report energy outlooks based upon evolving
technology, economics, and policy assumptions. We will refer to such
systems as energy projection frameworks. In addition, many energy-based
models have been recast to help analysts project long-term energy
patterns and their influence on global climate change. We will refer to
these systems as integrated assessment (IA) models (Weyant 1999). This
article briefly discusses the more readily available and routinely
produced energy projections from the first group of models and
highlights their most recently available estimates. It will focus on
the underlying energy trends to provide a perspective on future
emissions growth but will not directly examine the environmental
implications of these energy projections.