Suchergebnisse

This book addresses the significant environmental changes experienced by high latitude and high altitude ecosystems at the beginning of the 21st c- tury. Increased temperatures and precipitation, reduction in sea ice and glacier ice, the increased levels of UV-radiation and the long-range tra- ported contaminants in arctic and alpine regions are stress factors that challenge terrestrial and aquatic ecosystems. The large natural variation in the physical parameters of these extreme environments is a key factor in structuring the biodiversity and biotic productivity, and the effect of the new stress factors can be critical for the population structures and the - teraction between species. These changes may also have socio-economic effects if the changes affect the bio-production, which form the basis for the marine and terrestrial food chains. The book is uniquely multidisciplinary and provides examples of va- ous aspects of contemporary environmental change in arctic and alpine - gions. The 21 chapters of the book are organised under the fields of Climate change and ecosystem response, Long range transport of poll- ants and ecological impacts, and UV radiation and biological effects, each also including aspects of the Socio-economic effects of environmental change. The introductory chapter presents and explains the internal c- nection and integration of all chapters. The added value of these reviews and review-like manuscripts from different disciplines hopefully yields new information about the integrated aspects of environmental change.

"Written by a group of leading experts on Arctic affairs, this book offers a historically informed and comprehensive study of the geopolitics and security challenges of the Arctic. The key aim of the work is to identify the conditions for cooperation, stability and peace in the Arctic and to reach beyond simple description and expectation in order to explore in depth some of the main factors that will determine the future of international relations in the Arctic. Furthermore, it addresses key topics such as the geopolitical significance of the Arctic, the importance of oil and gas resources in the Arctic, and it questions what the main characteristics of governance in the Arctic are, and how institutions and regimes can promote stability and security in the region. The volume maintains three layers of focus. The first relates to Russia, the biggest stakeholder in the Artic. The second relates to the dynamics within the Arctic and the third layer relates to developments outside the region, highlighting that we cannot understand the Arctic in isolation from global developments such as energy markets, security conflicts and NATO-Russian antagonism. This book will be of much interest to students of Arctic politics, security studies, geopolitics, Russian and Scandinavian politics, and international relations in general"--