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MeetingMeeting documentChallenges and opportunities for bio-fuel production in the african countries 2010
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Book (stand-alone)Technical studyAlgae-Based Biofuels
A Review of Challenges and Opportunities for Developing Countries
2009Also available in:
No results found.Algae have recently received a lot of attention as a new biomass source for the production of renewable energy. Some of the main characteristics which distinguish algae from other biomass sources are: algae have a high biomass yield per unit of light and area; have a high oil or starch content; do not require agricultural land nor fresh water for growth; and wastewater and CO2 (by combustion gas) can be used as nutrients. The different technological components and the most common systems for culturing algae for energy purposes are discussed in this paper together with sustainability aspects. Several existing sets of sustainability criteria for biofuels are analysed for applicability, followed by an analysis of opportunities and risks of algae-based biofuel production. Furthermore, suitability and environmental, economic and social sustainability of this option for biofuel production is discussed in the context of potential and threats for dev eloping countries. -
Book (stand-alone)Working paperAlgae-based Biofuels
Applications and Co-products
2010Also available in:
No results found.The possible competition for land makes it impossible to produce enough first generation biofuel to offset a large percentage of the total fuel consumption for transportation. As opposed to land-based biofuels produced from agricultural feedstocks, cultivation of algae for biofuel does not necessarily use agricultural land and requires only negligible amounts of freshwater, and therefore competes less with agriculture than first generation biofuels. Combined with the promise of high productivi ty, direct combustion gas utilization, potential wastewater treatment, year-round production, the biochemical pathways and cellular composition of algae can be influenced by changing cultivation conditions and therefore tailored on local needs. On the other hand, microalgae, as opposed to most plants, lack heavy supporting structures and anchorage organs which pose some technical limitations to their harvesting. The reasons for investigating algae as a biofuel feedstock are strong but thes e reasons also apply to other products that can be produced from algae. There are many products in the agricultural, chemical or food industry that could be produced using more sustainable inputs and which can be produced locally with a lower impact on naturalresources. Co-producing some of these products together with biofuels, can make the process economically viable, less dependent from imports and fossil fuels, locally self sufficient and expected to generate new jobs, with a positive ef fect on the overall sustainability. This document provides an overview of practical options available for co-production from algae and their viability and suitability for developing countries.
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Book (stand-alone)Manual / guide青少年生物多样性科普手册 2022
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《青年与联合国全球联盟学习和行动系列：青少年生物多样性科普手册》是为学校、青年团体和其他好奇的年轻学习者提供的教育资源。本手册从基因、物种和生态系统方面解释了生物多样性。它探索了海底、陆地、空中、河流和湖泊以及生产我们食物的农场的生物多样性。本手册考虑了为什么生物多样性很重要，人类如何影响生物多样性，以及我们必须做些什么来保护世界生物资源。在手册的最后，提供了一些鼓舞人心的青年人领导倡议的例子，并给出了容易遵循的动作计划来帮助你制定自己的生物多样性项目和保护活动。 -
BookletHigh-profileFAO Strategy on Climate Change 2022–2031 2022The FAO Strategy on Climate Change 2022–2031 was endorsed by FAO Council in June 2022. This new strategy replaces the previous strategy from 2017 to better FAO's climate action with the Strategic Framework 2022-2031, and other FAO strategies that have been developed since then. The Strategy was elaborated following an inclusive process of consultation with FAO Members, FAO staff from headquarters and decentralized offices, as well as external partners. It articulates FAO's vision for agrifood systems by 2050, around three main pillars of action: at global and regional level, at country level, and at local level. The Strategy also encourages key guiding principles for action, such as science and innovation, inclusiveness, partnerships, and access to finance.
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Book (series)FlagshipThe State of Food Security and Nutrition in the World 2021
Transforming food systems for food security, improved nutrition and affordable healthy diets for all
2021In recent years, several major drivers have put the world off track to ending world hunger and malnutrition in all its forms by 2030. The challenges have grown with the COVID-19 pandemic and related containment measures. This report presents the first global assessment of food insecurity and malnutrition for 2020 and offers some indication of what hunger might look like by 2030 in a scenario further complicated by the enduring effects of the COVID-19 pandemic. It also includes new estimates of the cost and affordability of healthy diets, which provide an important link between the food security and nutrition indicators and the analysis of their trends. Altogether, the report highlights the need for a deeper reflection on how to better address the global food security and nutrition situation.To understand how hunger and malnutrition have reached these critical levels, this report draws on the analyses of the past four editions, which have produced a vast, evidence-based body of knowledge of the major drivers behind the recent changes in food security and nutrition. These drivers, which are increasing in frequency and intensity, include conflicts, climate variability and extremes, and economic slowdowns and downturns – all exacerbated by the underlying causes of poverty and very high and persistent levels of inequality. In addition, millions of people around the world suffer from food insecurity and different forms of malnutrition because they cannot afford the cost of healthy diets. From a synthesized understanding of this knowledge, updates and additional analyses are generated to create a holistic view of the combined effects of these drivers, both on each other and on food systems, and how they negatively affect food security and nutrition around the world.In turn, the evidence informs an in-depth look at how to move from silo solutions to integrated food systems solutions. In this regard, the report proposes transformative pathways that specifically address the challenges posed by the major drivers, also highlighting the types of policy and investment portfolios required to transform food systems for food security, improved nutrition, and affordable healthy diets for all. The report observes that, while the pandemic has caused major setbacks, there is much to be learned from the vulnerabilities and inequalities it has laid bare. If taken to heart, these new insights and wisdom can help get the world back on track towards the goal of ending hunger, food insecurity, and malnutrition in all its forms.