As for the pollution control in global enviroment, it is necessary to clarify in more detail the structural relationship among the climatic activities in atmosphere, the economic activities on land and the ecological activities in marine, and to investigate a number of paths which converge to the reference model (sustainable world) and the adaptation process of system and its stability by using Model Reference Adaptive Control System. In this paper, we therefore attempt to examine in more detail inter-field repercussion placing the emphasis mainly on the two-fiels case. More specifically, we are interested in gaining the insights into the balance of inter-field repercussion by Hermite Inverse Matrix Method which shows the total effects of inter-field propagation. Furthemore, for the achievement of model reference pollution reduction, we investigate a path converging to the reference model, the adaptive processes of system and its stability by making use of Model Reference Adaptive Input-Output Model and Model Reference Adaptive Ecological Model. These models are to make it clear how the actual world converges to the sustainable world once the reference world is established.