Desertification has occurred worldwide. The biophysical and socio-economic complexity of this phenomenon has challenged our ability to categorize, inventory, monitor and repair the condition of degraded lands. One of the most important distinctions to be made in relation to land degradation is between cultivated land used for annual crop production and `rangelands'. Grazing by free-roaming livestock is the traditional primary use of the world's rangelands. However, there is growing recognition of the importance of these vast acreages for wildlife habitat, hydrology and ground water recharge, recreation and aesthetics. This text focuses on the desertification of rangelands and explores processes, problems and solutions. Chapters in the first section evaluate interactions between `natural' and human-induced disturbance regimes, thresholds, and non-linear change with respect to vegetation, hydrology, nutrients and erosion. Chapters in the second section examine socio-economic constraints and approaches for preventing and reversing degradation. The book provides a contemporary, process-oriented perspective on rangeland degradation of value to students, policy-makers and professionals alike.

By 2050 the world's population is projected to grow by one-third, reaching between 9 and 10 billion. With globalization and expected growth in global affluence, a substantial increase in per capita meat, dairy, and fish consumption is also anticipated. The demand for calories from animal products will nearly double, highlighting the critical importance of the world's animal agriculture system. Meeting the nutritional needs of this population and its demand for animal products will require a significant investment of resources as well as policy changes that are supportive of agricultural production. Ensuring sustainable agricultural growth will be essential to addressing this global challenge to food security. Critical Role of Animal Science Research in Food Security and Sustainability identifies areas of research and development, technology, and resource needs for research in the field of animal agriculture, both nationally and internationally. This report assesses the global demand for products of animal origin in 2050 within the framework of ensuring global food security; evaluates how climate change and natural resource constraints may impact the ability to meet future global demand for animal products in sustainable production systems; and identifies factors that may impact the ability of the United States to meet demand for animal products, including the need for trained human capital, product safety and quality, and effective communication and adoption of new knowledge, information, and technologies. The agricultural sector worldwide faces numerous daunting challenges that will require innovations, new technologies, and new ways of approaching agriculture if the food, feed, and fiber needs of the global population are to be met. The recommendations of Critical Role of Animal Science Research in Food Security and Sustainability will inform a new roadmap for animal science research to meet the challenges of sustainable animal production in the 21st century.

The quiet revolution of mega-farming that is threatening our countryside, farms and food. 'This eye-opening book . . . deserves global recognition' Hugh Fearnley-Whittingstall 'Devastating . . . demands reading and deserves the widest possible audience' Joanna Lumley 'He is informed enough to be appalled, and moderate enough to persuade us to take responsibility for the system that feeds us' Guardian: Book of the Week Farm animals have been disappearing from our fields as the production of food has become a global industry. We no longer know for certain what is entering the food chain and what we are eating. We are reaching a tipping point as the farming revolution threatens our countryside, health and the quality of our food wherever we live in the world. From the antibiotics routinely given to industrially farmed animals to the chemicals that are killing our insect populations, Farmageddon is a fascinating and terrifying investigative journey behind the closed doors of a runaway industry across the world – from Europe to the USA, from China to Latin America. It is both a wake-up call to change our current food production and eating practices, and an attempt to find a way to a better farming future.

This book offers an in-depth analysis of the political economy of soybean production in Brazil, Argentina and Paraguay, by identifying the dominant private and public actors and control mechanisms that have given rise to a corporate-driven, vertically integrated system of regionalized agricultural production in the Southern Cone of South America. The current agricultural boom surrounding soybean production has been aided by aggressive new agro-technologies, including biotechnology, leading to massive organizational changes in the agricultural sector and a significant rise in the power of special interest groups and corporations. Despite having similar initial production conditions, the pattern of economic activity surrounding soybean production in Brazil, Argentina and Paraguay, continues to be largely determined by the needs of the multinational corporations involved, rather than national considerations of comparative advantage. The author uses these findings to argue that the new international model of agricultural production empowers chemical and trading multinational companies over national governments.