Includes bibliographical references and index.

Introduction.-Part I: Conceptual background.- The evaluation gap in e-participation researchand practice.- Citizen participation in climate policy.- Part II: Evaluation ofpublic (e-)information and (e-)consultation processes in climate policy.- Evaluatingpublic (e-)information provision.- Evaluating public (e-)consultation processes.-PART III: Evaluating public (e-)collaboration processes in climate policy.- Different kinds of collaboration.- Evaluationapproach, concept, tools and empirical setting.- CO2 calculator for Impact measurement.-Comparing output and Outcome.- Climate related attitudes and behaviour changes.-Ecological impacts on individual level.- Ecological impacts on collective level.-Drop out analysis.- The organizers view.- Civic and social impacts.- Part IV:Specific role of e-participation and implications for evaluation of participation processes.- Online - offline comparison.- Implications for evaluating participation processes (consultation and collaboration).- Summary and outlook.- References.-Annex.

There is a widely acknowledged evaluation gap in the field of e-participation practice and research, a lack of systematic evaluation with regard to process organization, outcome and impacts.