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comprehensively up to date. We are most grateful to these authors and to those we recruited to write the additional chapters necessary to fill the significant gaps. We acknowledge also the sacrifice of some who presented results of original research and have thus suffered a longer time than usual to publication. The timing of publication however has provided the opportunity to highlight recent discussions and resolutions made within the Antarctic Treaty forum to protect wildlife against disease and to include responses by Government and non-Government operators in Antarctica. These developments mostly followed from the Workshop on Diseases of Antarctic Wildlife. The book comprises 17 chapters presented in two parts. Wildlife disease consists of reviews, case studies and health assessments, and External factors covers the environmental, administrative and legal aspects. Each chapter is complete and c- tains all references. Six important documents are provided as Appendices. These present methods, reviews and other documents which are referred to in one or more chapters but are not readily available. There are many related topics we have been unable to cover that would enhance the understanding of health and disease processes in Antarctica. While we ackno- edge their importance they are outside the scope of the present volume. Such topics include epidemiology, new and emerging infectious diseases and the effects of climate change. These topics are referred to in the various chapters where ref- ences to source material are given.

Antarctica, one of the world's last great wildernesses, presents special challenges for international law. Fears that Antarctica would become a front in the Cold War catalysed agreement on the 1959 Antarctic Treaty which neither legitimised nor challenged the existing sovereign claims to the continent. The unique Antarctic Treaty System has provided the foundation for peaceful, harmonious and effective governance. There are, however, new anxieties about the frozen continent and the Southern Ocean. Antarctica already feels the effects of climate change and ocean acidification. Claimant states assert rights to the Antarctic continental shelf and interest in Antarctic resources grows. Tourism brings new environmental and safety risks. China and other powers are increasing their activities, with some questioning the consensus of the 'Antarctic club'. Security concerns are increasingly discussed, despite Antarctica's dedication to peaceful purposes. This book brings together the main primary international materials concerning the regulation and governance of Antarctica, including multilateral and bilateral treaties, United Nations materials, 'soft laws' and judicial decisions. It covers the spectrum of Antarctic issues from environmental protection to scientific cooperation to tourism. As it shows, Antarctic law has constantly adapted to meet new challenges and is a sophisticated, inclusive, dynamic and responsive regime.

The polar regions, perhaps more than any other places on Earth, give the geophysical scientist a sense of exploration. This sensibility is genuine, for not only is high-latitude ?eldwork arduous with many locations seldom or never visited, but there remains much fundamental knowledge yet to be discovered about how the polar regions interact with the global climate system. The range of opportunities for new discovery becomes strikingly clear when we realize that the high latitudes are not one region but are really two vastly di?erent worlds. The high Arctic is a frozen ocean surrounded by land, and is home to fragile ecosystems and unique modes of human habitation. The Antarctic is a frozen continent without regular human habitation, covered by ice sheets taller than many mountain ranges and surrounded by the Earth’s most forbidding ocean. When we consider global change as applied to the Arctic, we discuss impacts to a region whose surface and lower atmospheric temperatures are near the triple point of water throughout much of the year. The most consistent signatures of climate warming have occurred at northern high latitudes (IPCC, 2001), and the potential impacts of a few degrees increase in surface temperature include a reduction in sea ice extent, a positive feedback to climate warming due to lowering of surface albedo, and changes to surface runo? that might a?ect the Arctic Ocean’s salinity and circulation.

Presents an overview of the meteorology and climatology of the Antarctic aimed at the forecaster who are new to working on the continent. Many forecasters who arrive at Antarctic research stations have no previous experience of forecasting on the continent and many come from the Northern Hemisphere, so making it even more difficult for them to adjust to the analysis and forecasting tasks that they will have to carry out. Although the majority of the forecasters will have had some training in Antarctic forecasting methods prior to travelling South this section of the handbook should be a useful introduction to the meteorological conditions experienced across the continent. In addition, in Appendix 4 there is a suggested training programme for Antarctic weather forecasters that presents a more structured introduction to analysis and prediction techniques for those who are required to prepare training modules.