Note that, although this diagram provides a collapsed view of a complex process that comprises many different players and steps, it accurately reflects how policy on air pollution is set, who the different players are in that process, and how the information they need flows through the decision-making chain. We have used this model to develop the Apheis communications strategy and to determine specifically with which audiences we need to communicate, what information each audience needs, and in what form they need it. Figure 2 below adds a new and important layer of information to Figure 1, and shows that information is processed at virtually every step.
