TY - BOOK AU - Agnew, Malcolm AU - Schrattenholzer, Leo AU - Voss, Alfred TI - A model for energy supply systems alternatives and their general enviromental impact U1 - 005.7 PY - 1979/// CY - Laxenburg PB - International Institute for Applied Systems Analysis KW - Modelos Energéticos KW - Message KW - Medio Ambiente KW - Sector Energético N1 - Impreso; 06649; The paper is concerned with the model MESSAGE. This model is formulated as a dynamic linear programme for the comparison of new and existing supply technologies for the primary, secondary and end-use conversion and distribution of energy to satisfy each of the different components of a given energy demand. Constraints are imposed by the availability of primary energy resources and the carrying capacity of the environment ER -