Harf begins with a description of the historical patterns and the contemporary character of the international system and shows why it is difficult for the world community to address today's issues. He provides essential information on four specific issues used as case studies--food, actors, energy values, population policy and environment futures; and summarizes how far the global community has solved these issues and what tasks remain. ISBN 0-8223-0623-9 (pbk.): $14.95.
Environmental engineers support the well-being of people and the planet in areas where the two intersect. Over the decades the field has improved countless lives through innovative systems for delivering water, treating waste, and preventing and remediating pollution in air, water, and soil. These achievements are a testament to the multidisciplinary, pragmatic, systems-oriented approach that characterizes environmental engineering. Environmental Engineering for the 21st Century: Addressing Grand Challenges outlines the crucial role for environmental engineers in this period of dramatic growth and change. The report identifies five pressing challenges of the 21st century that environmental engineers are uniquely poised to help advance: sustainably supply food, water, and energy; curb climate change and adapt to its impacts; design a future without pollution and waste; create efficient, healthy, resilient cities; and foster informed decisions and actions.
Since the publication of the first edition of Food, Energy, and Society, the world's natural resources have become even more diminished due to the rapid expansion of the global human population. We are faced with dwindling food supplies in certain geographic areas, increasing pressure on energy resources, and the imminent extinction of many
This will be the first textbook on the integration of food, energy and water systems (FEWS). In recent years, the world has seen a dramatic rise in interdisciplinary energy and environmental courses and degrees at the undergraduate and graduate levels. In the US for instance, the number and variety of such programs has increased significantly over the past decade, Simultaneously, national and international initiatives that integrate food, energy and water systems have been launched. This textbook provides a substantive introduction to the food-energy-water nexus suitable for use in higher level undergraduate and graduate level courses and for scholars moving into the field of nexus studies without a strong background in all three areas and the many aspects of nexus studies.
In this book, major issues surrounding importance of water and energy for food security in the United States and India are described representing two extremes in yield, irrigation efficiency, and automation. The farming systems in these two countries face different risks in terms of climatic shifts and systems’ resiliency to handle the shocks. One may have comparative advantage over the other, but both are susceptible. Innovations in irrigation for food and fuel production, improvements in nitrogen and water use efficiency, and rural sociological issues are discussed here. We also look into some of the unintended consequences of high productivity agriculture in terms of surface and ground water quality and impacts on ecosystem services. Finally, we present ways to move forward to meet the food demands in the next half-century in both countries. As the current world population of 7 billion is expected to reach or exceed 10 billion in the next 40 years, there will be significant additional demand for food. A rising middle class and its preference for a meat-based diet also increases the demand for animal feed. This additional food and feed production needs special considerations in water and energy management besides the development of appropriate crop hybrids to withstand future climatic shifts and other environmental factors. A resilient agricultural landscapes will also be needed to withstand climatic fluctuations, disease pressures, etc. While the upper and many middle income countries have made significant improvements in crop yield due to pressurized irrigation and automation in farming systems, the lower income countries are struggling with yield enhancements due to such limitations. The rise in population is expected to be more in Sub-Sharan Africa and Middle East (Low to middle-income countries) where the crop yields are expected to be low.
Secure supplies of water, food and energy are essential to human dignity and well-being around the globe. Their vitality is dependent on healthy ecosystems supporting thriving biodiversity. All four elements are inter-related in that actions to govern one will automatically affect the others -- known as the Nexus. Global demand for the first three elements is increasing due to population growth and rising per capital incomes in developing countries, with steadily worsening results for the fourth. The Nexus elements are also subject to increasing pressures from climate disruption in the form of more frequent and severe flooding, droughts, storms, pest outbreaks, and extreme heat. Nature's capacity to moderate these impacts is also being eroded by rapid, widespread land use development and associated pollution. The combination of increasing demand, decreasing supplies, and rapidly changing hydro-climatic conditions at all points of the Nexus requires transformative policy responses that encompass economy, equity, social justice, fairness, and the environment. The Climate Nexus outlines these challenges and offers a pathway to resolving them.
This collection critically engages the resource use nexus. Clearly, a nexus-approach to resource policy, planning and practice is essential if sustainable development goals are to be met. In particular, in an era of climate change, an integrated approach to water, energy and agriculture is imperative. Agriculture accounts for 70% of global water withdrawals, food production accounts for 30% of global energy use and a rising global population requires more of everything. As shown in this collection, scholars of resource development, governance and management are ‘nexus sensitive’, utilizing a sort of ‘nexus sensibility’ in their work as it focuses on the needs of people particularly, but not only, in the global South. Importantly, a nexus-approach presents academics and practitioners with a discursive space in which to shape policy through research, to deepen and improve understandings of the interconnections and impacts of particular types of resource use, and to critically reflect on actions taken in the name of the ‘nexus’.
Global trends of population growth, rising living standards and the rapidly increasing urbanized world are increasing the demand on water, food and energy. Added to this is the growing threat of climate change which will have huge impacts on water and food availability. It is increasingly clear that there is no place in an interlinked world for isolated solutions aimed at just one sector. In recent years the "nexus" has emerged as a powerful concept to capture these inter-linkages of resources and is now a key feature of policy-making. This book is one of the first to provide a broad overview of both the science behind the nexus and the implications for policies and sustainable development. It brings together contributions by leading intergovernmental and governmental officials, industry, scientists and other stakeholder thinkers who are working to develop the approaches to the Nexus of water-food-energy and climate. It represents a major synthesis and state-of-the-art assessment of the Nexus by major players, in light of the adoption by the United Nations of the new Sustainable Development Goals and Targets in 2015. With a foreword by HRH the Prince of Wales
