Cost-benefit analysis in climate change adaptation: the use of participatory methodologies

Cost-benefit analysis, as an economic evaluation tool of public or private projects, has evolved significantly in the last 200 years following the developments in terms of economics, namely Environmental Economic, and developments in project analysis and public policy evaluation.

Adaptation Inspiration Book: 22 implemented cases of local climate change adaptation to inspire European citizens

To show the progress in Europe on adaptation to climate change and to showcase inspirational and daring adaptation projects ERANET CIRCLE-2 works on a bold and visual inspiration book with good practices of implementation of adaptation strategies and projects in Europe. While most people may have a rough comprehension of climate change, the phrase adaptation often invites only raised eyebrows. What is adaptation? How do you define it and what does it look like?

Adaptive flood risk management under climate change uncertainty using Real Options and optimization.

It is well recognized that adaptive and flexible flood risk strategies are required to account for future uncertainties. Development of such strategies is, however, a challenge. Climate change alone is a significant complication, but, in addition, complexities exist trying to identify the most appropriate set of mitigation measures, or interventions. There are a range of economic and environmental performance measures that require consideration, and the spatial and temporal aspects of evaluating the performance of these is complex.

Cities and flooding. A guide to integrated urban flood risk management for the 21st Century

The guide serves as a primer for decision and policy makers, technical specialists, central, regional and local government officials, and concerned stakeholders in the community sector, civil society and non-governmental organizations, and the private sector. The Guide embodies the state-of-the art on integrated urban flood risk management. The Guide starts with a summary for policy makers which outlines and describes the key areas which policy makers need to be knowledgeable about to create policy directions and an integrated strategic approach for urban flood risk management.

Exchange of experiences and comparative analysis of Integrated Coastal Management (OURCOAST)

The Ourcoast-Database includes case studies that reflect successful examples of Integrated Coastal Zone Management (ICZM) approach and tools applied throughout the European Member States. For the case studies, the following questions have been applied: where, why, how and involving whom has the ICZM approach or tools been applied, but also what were their main results and which were the main successful and failure factors affecting the implementation.

Assessment of flood mitigation measures. Further development of a proactive methodology applied in a suburban area in Gothenburg.

Flooding due to extreme rain events in urban environments is a problem and a growing concern. When the stormwater systems design return period are greatly exceeded during extreme rain events, flooding is inevitable. However, the flood consequences can be mitigated by surface water management. A Swedish methodology, Plan B, is developed for investigation and planning of extreme rain events by means of flood simulation models.

Report on the Estimated Cost of Adaptation Options Under Climate Uncertainty

This report describes the CEA methodology and how we have implemented this in CLIMSAVE. We address key methodological issues referring to uncertainty and report in detail on specific topics. We conclude with insights gained and proposals for the further development of the CEA methodology.

Flood risk reduction by the use of retention areas at the Elbe River

The paper presents research results on flood risk mitigation by the controlled flooding of a retention area on the middle reaches of the Elbe River. The retention area consists of six large polders and the floodplain of a tributary, the Havel, and is located near the Havel's confluence with the Elbe River. The total retention volume of both the polders and the Havel floodplain amounts to approximately 250 million m3. The controlled flooding of the retention area was simulated by the use of a conceptual model and assessed economically for two flood scenarios.

Effectiveness and efficiency of early warning systems for flash-floods (EWASE)

The issue addressed within the EWASE project centres on the assessment of the effectiveness and efficiency of Early Warning Systems (EWS) for medium sized river basins prone to flash floods. The approach pursued relates the concept of risk analysis to the evaluation of strategies for flood damage prevention through early warnings. For the assessment of EWS efficiency, the reliability of forecasts will be linked to the potential damage reduction - both as a function of forecast lead time.