Environmental Management of Air, Water, Agriculture, and Energy brings together the most current state of knowledge on four major elements for sustaining life on planet Earth: air, water, food, and energy. It examines how green technology aids in mitigating the global water, energy, and climate change crises, including the use of electrostatic force and green infrastructure. The concepts of underwater vegetation and aquatic cultivation, as well as vertical farms, are presented to spark discussion on emerging water-energy-food nexus lessons, experiences, and opportunities. This book takes a comprehensive global-scale approach to examining potential future environmental scenarios and outcomes. Features: Analyzes the most recent research findings in each of the areas covered Synthesizes the state-of-the-art understanding Recommends ways to strive forward and to shape future research Serves as an educational tool for educators and students Supported by detailed examples and case studies, this book serves not only as an up-to-date source of information for environmental experts and researchers in the field, but also as an educational tool for relevant undergraduate and graduate courses. It is also suitable for industry professionals concerned with preserving planet Earth for generations to come.

This volume argues that international security in the Asia-Pacific lends itself to contradictory analyses of centrifugal and centripetal trends. Transitional polycentrism is intrinsically awkward as a description of the security of states and their populations; it implies the loosening of state control and the emergence of newly asserted authority by mixed constellations of intergovernmental organizations and non-state actors. It implies a competition of agendas: threats to the integrity of borders and human security threats such as natural disasters, airliner crashes, and displacement by man-made pollution and food scarcity. Conversely, polycentrism could also imply a return to a more neo-realist oriented international order where great powers ignore ASEAN and steer regional order according to their perceived interests and relative military superiority. This book embraces these contradictory trends as a foundation of analysis and accepts that disorder can also be re-described from the perspective of studied detachment as polycentric order.

New evidence this year corroborates the rise in world hunger observed in this report last year, sending a warning that more action is needed if we aspire to end world hunger and malnutrition in all its forms by 2030. Updated estimates show the number of people who suffer from hunger has been growing over the past three years, returning to prevailing levels from almost a decade ago. Although progress continues to be made in reducing child stunting, over 22 percent of children under five years of age are still affected. Other forms of malnutrition are also growing: adult obesity continues to increase in countries irrespective of their income levels, and many countries are coping with multiple forms of malnutrition at the same time – overweight and obesity, as well as anaemia in women, and child stunting and wasting.

The rural poor, who are the most vulnerable, are likely to be disproportionately affected.

Unless action is taken now to make agriculture more sustainable, productive and resilient, climate change impacts will seriously compromise food production in countries and regions that are already highly food-insecure. The Paris Agreement, adopted in December 2015, represents a new beginning in the global effort to stabilize the climate before it is too late. It recognizes the importance of food security in the international response to climate change, as reflected by many countries prominent focus on the agriculture sector in their planned contributions to adaptation and mitigation. To help put those plans into action, this report identifies strategies, financing opportunities, and data and information needs. It also describes transformative policies and institutions that can overcome barriers to implementation. The State of Food and Agriculture is produced annually. Each edition contains an overview of the current global agricultural situation, as well as more in-depth coverage of a topical theme."

The 2020 edition of the WWDR, titled Water and Climate Change illustrates the critical linkages between water and climate change in the context of the broader sustainable development agenda. Supported by examples from across the world, it describes both the challenges and opportunities created by climate change, and provides potential responses – in terms of adaptation, mitigation and improved resilience – that can be undertaken by enhancing water resources management, attenuating water-related risks, and improving access to water supply and sanitation services for all in a sustainable manner. It addresses the interrelations between water, people, environment and economics in a changing climate, demonstrating how climate change can be a positive catalyst for improved water management, governance and financing to achieve a sustainable and prosperous world for all. The report provides a fact-based, water-focused contribution to the knowledge base on climate change. It is complementary to existing scientific assessments and designed to support international political frameworks, with the goals of helping the water community tackle the challenges of climate change, and informing the climate change community about the opportunities that improved water management offers in terms of adaptation and mitigation.