J. Alcamo – författare

Global Change Scenarios of the 21st Century informs readers of conceivable environmental changes in the next hundred years. Integrated scenarios are used to communicate large amounts of information about different aspects of the global environmental system, together with society's role within this system. Uniquely, the scenarios are generated by an integrated computer model, IMAGE 2.1, which enhances consistency and provides a framework for linking environmental and social aspects of global change.The book is divided into four parts, the volume begins by describing the model used to generate these scenarios, explaining its current features. This is followed by scenarios of changing climate, energy and food use, land cover, acidification, sea level and many other indicators of global change up to 2100. The long term consequences of actions to reduce greenhouse gas emissions are then explored in a section which uses the concepts of 'safe landing' and 'safe emission corridors' to address the connection between the long-term climate protection and short-term emission reductions. The final sections examines how the complicated and crucial issue of how complex global scenario information can be communicated to policy makers.

As scientists and policymakers try to come to grips with problems such as climate change and risks to biodiversity, they turn more and more frequently to the method of scenario analysis to better understand the future of these problems. Over the last few years scenario analysis has become one of the key tools for bridging environmental science and policy. This is the first book to sum up the current practice of environmental scenario analysis and to propose directions for improving its quality and effectiveness. Chapters are written by an international group of distinguished scenario experts and provide an excellent starting basis for first-time scenario practitioners, as well as a collection of new ideas on improving scenario practice for experienced scenario analysts.Comprehensive coverage and overview on environmental scenario analysis from a team of international expertsFirst book to address key contemporary issues involved with environmental scenario analysisGives guidelines for best practices

Only a few laboratories in the world have taken the bold step to attempt the integration of sub-models of the climate system, the global biogeochemical cycles and the human/societal components. This volume reports such a major undertaking and it is an important step towards an integrated approach to global change science. The IMAGE 2 model is important in demonstrating our current ability to model the complex global system.