Longhurst examines the proposition, central to fisheries science, that a fishery creates its own natural resource by the compensatory growth it induces in the fish, and that this is sustainable. His novel analysis of the reproductive ecology of bony fish of cooler seas offers some support for this, but a review of fisheries past and present confirms that sustainability is rarely achieved. The relatively open structure and strong variability of marine ecosystems is discussed in relation to ...

An eye-opening and vital account of the future of our earth and our civilisation if current rates of global warming persist, by the highly acclaimed author of ‘High Tide’.Picture yourself a few decades from now, in a world in which average temperatures are three degrees higher than they are now. On the edge of Greenland, rivers ten times the size of the Amazon are gushing off the ice sheet into the north Atlantic. Displaced victims of North Africa's drought establish a new colony o...

What does it take for a volcanic eruption to really shake the world? Did volcanic eruptions extinguish the dinosaurs, or help humans to evolve, only to decimate their populations with a super-eruption 73,000 years ago? Did they contribute to the ebb and flow of ancient empires, the French Revolution and the rise of fascism in Europe in the 19th century? These are some of the claims made for volcanic cataclysm. Volcanologist Clive Oppenheimer explores rich geological, historical, archaeolog...

Over the past twenty years considerable public attention has been focused on the decline of marine fisheries, the sustainability of world fish production, and the impacts of fishing on marine ecosystems. Many have voiced their concerns about marine conservation, as well as the sustainable and ethical consumption of fish. But are fisheries in danger of collapse? Will we soon need to find ways to replace this food system? Should we be worried that we could be fishing certain species to extin...

The Earth's climate is already warming due to increased concentrations of human-produced greenhouse gases in the atmosphere, and the specter of rising sea level is one of global warming's most far-reaching threats. Sea level will keep rising long after greenhouse gas emissions have ceased, because of the delay in penetration of surface warming to the ocean depths and because of the slow dissipation of excess atmospheric carbon dioxide. Adopting a long perspective that interprets sea level ...

Endorsed by Cambridge Assessment International Education for full syllabus coverage.Rely on a course with international focus and examples and case studies from around the world, which has been especially written to cover the Cambridge International AS & A Level Geography syllabus for examination from 2018 (9696).- Build geographical skills with clear guidance and practice, including advice on fieldwork- Ensure complete coverage with...

Noted coastal geologist Orrin Pilkey and environmental scientist Linda Pilkey-Jarvis show that the quantitative mathematical models policy makers and government administrators use to form environmental policies are seriously flawed. Based on unrealistic and sometimes false assumptions, these models often yield answers that support unwise policies.Writing for the general, nonmathematician reader and using examples from throughout the environmental sciences, Pilkey and Pilkey-Jarvis ...

The fundamental point of this book is that, in the past, the world's political, economic, military and social development took place during a time of relatively stable sea level. That time, however, is now over: The world must begin to cope with rising seas.This book is a wide-ranging introductory survey. It addresses global warming, the hydrologic cycle, why we should care about the rise of the oceans, storm surges and other extreme events, the changing seas and their shorelines, ...

The coast cannot be left to nature to determine its fate. Wealth, property, economic interests, recreation, tourism and wildlife are all threatened. Coasts are an administrative battle ground and one of the most important and widely examined topics in environmental management.Coastal and Estuarine Management examines the issues surrounding the human use and abuse of estuarine and coastal environments. Emphasising the importance and significance of this natural resource, the...

Tigers of the World, Second Edition explores tiger biology, ecology, conservation, management, and the science and technology that make this possible. In 1988, when the first edition was published, tiger conservation was still in its infancy, and two decades later there has been a revolution not only in what is known, but how information about tigers is obtained and disseminated. In the fast changing world of conservation, there is a great need to summarize the vast and current state-of-th...

The Ecology of Papua provides a comprehensive review of current scientific knowledge on all aspects of the natural history of western (Indonesian) New Guinea.Designed for students of conservation, environmental workers, and academic researchers, it is a richly detailed text, dense with biogeographical data, historical reference, and fresh insight on this complicated and marvelous region. We hope it will serve to raise awareness of Papua on a global as well...

Policy and management decisions are often made on financial grounds. However, the economic value of the benefits that people derive from ecosystems, that is, ecosystem services, may not be fully recognised and hence ecosystem considerations may not be incorporated adequately into decision-making processes. This is particularly true for regulating services, the benefits obtained from the regulation of ecosystem processes, the valuation of which requires an interdisciplinary approach. In ess...