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Book (stand-alone)Technical bookLa larga sombra del ganado
problemas ambientales y opciones
2006El objetivo de este informe es realizar una evaluación del impacto global del sector pecuario sobre los problemas ambientales, así como de los posibles enfoques técnicos y normativos para mitigarlo. Esta evaluación se basa en los datos más recientes y completos a disposición y tiene en cuenta tanto los impactos directos como los derivados de los cultivos forrajeros necesarios para la producción ganadera.Por la magnitud de su impacto, la ganadería es uno de los dos o tres sectores con repercusion es más graves en los principales problemas medioambientales a todos los niveles, desde el ámbito local hasta el mundial. Los resultados de este informe indican que la consideración de este sector es fundamental a la hora de diseñar políticas encaminadas a la solución de los problemas relacionados con la degradación de las tierras, el cambio climático, la contaminación atmosférica, la escasez y contaminación del agua y la pérdida de biodiversidad.La incidencia del ganado en los problemas ambienta les, así como también su potencial para contribuir a solucionarlos, son decisivos. Su impacto es tan significativo que precisa urgente atención. Podrían obtenerse notables reducciones del impacto a un costo razonable. -
Book (series)Technical studyThe impact of climate variability and extremes on agriculture and food security - An analysis of the evidence and case studies
Background paper for The State of Food Security and Nutrition in the World 2018
2020Also available in:
No results found.Global climate studies show that not only temperatures are increasing and precipitation levels are becoming more varied, all projections indicate these trends will continue. It is therefore imperative that we understand changes in climate over agricultural areas and their impacts on agriculture production and food security. This study presents new analysis on the impact of changing climate on agriculture and food security, by examining the evidence on recent climate variability and extremes over agricultural areas and the impact of these on agriculture and food security. It shows that more countries are exposed to increasing climate variability and extremes and the frequency (the number of years exposed in a five-year period) and intensity (the number of types of climate extremes in a five-year period) of exposure over agricultural areas have increased. The findings of this study are compelling and bring urgency to the fact that climate variability and extremes are proliferating and intensifying and are contributing to a rise in global hunger. The world’s 2.5 billion small-scale farmers, herders, fishers, and forest-dependent people, who derive their food and income from renewable natural resources, are most at risk and affected. Actions to strengthen the resilience of livelihoods and food systems to climate variability and extremes urgently need to be scaled up and accelerated. -
Book (series)Manual / guideA guide to forest–water management 2021Many people worldwide lack adequate access to clean water to meet basic needs, and many important economic activities, such as energy production and agriculture, also require water. Climate change is likely to aggravate water stress. As temperatures rise, ecosystems and the human, plant, and animal communities that depend on them will need more water to maintain their health and to thrive. Forests and trees are integral to the global water cycle and therefore vital for water security – they regulate water quantity, quality, and timing and provide protective functions against (for example) soil and coastal erosion, flooding, and avalanches. Forested watersheds provide 75 percent of our freshwater, delivering water to over half the world’s population. The purpose of A Guide to Forest–Water Management is to improve the global information base on the protective functions of forests for soil and water. It reviews emerging techniques and methodologies, provides guidance and recommendations on how to manage forests for their water ecosystem services, and offers insights into the business and economic cases for managing forests for water ecosystem services. Intact native forests and well-managed planted forests can be a relatively cheap approach to water management while generating multiple co-benefits. Water security is a significant global challenge, but this paper argues that water-centered forests can provide nature-based solutions to ensuring global water resilience.