2022 Global Food Policy Report Climate Change And Food Systems

气候变化对全球食物系统构成的威胁日益严重，对食物和营养安全、生计及全人类整体福祉，尤其是对世界各地的贫困人口和弱势群体造成了严峻影响。我们迫切需要对气候变化采取紧急行动，既要实现限制全球变暖所需的大幅度减排，又要提高适应和应对气候变化的能力，这一点正引起全球的广泛关注。《2022全球食物政策报告》提出了一系列加快行动的机会，这些机会应在制定适应、减缓和应对气候变化的政策与投资决策时加以考虑。

Food systems and diets underpin many critical challenges to public health and environmental sustainability, including malnutrition, noncommunicable diseases, and climate change, but sustainable healthy diets have the unique potential to reshape the future for both human and planetary well-being. The 2024 Global Food Policy Report draws on recent evidence to examine the role of food systems in driving nutrition outcomes and opportunities for transforming food systems to ensure healthy diets for all. Chapters by IFPRI researchers and partners evaluate proven and innovative ways to sustainably improve diet quality and reduce malnutrition, including ways to make healthy diets more affordable, accessible, and desirable, how to improve food environments, the role of both agricultural crops and animal-source foods, and governance for better diets and nutrition, all with a major focus on the most vulnerable populations in low- and middle-income countries. Regional sections explore the diverse challenges countries face and promising policy responses for transforming food systems for sustainable healthy diets.

Climate change poses unprecedented challenges to the world’s food systems. Rising temperatures, changing rainfall patterns, and more frequent extreme weather events threaten agricultural production and the biodiversity and ecosystem services that underpin agriculture. Within food systems, climate change affects processing, storage, transport, and retailing of food and affects our food environments. These growing climate risks impact food security, nutrition, and human health, as well as equity and livelihoods, with poor food producers and consumers hit hardest. They make food systems a riskier source of income and reduce the availability of food — worsening poverty and inequity, disrupting livelihoods, and contributing to hunger and malnutrition. At the same time, food systems are failing to provide healthy diets for all, and are generating one-third of human-caused greenhouse gases. Solutions must address this complex nexus of problems. Climate change adaptation and resilience-building efforts for food systems must be accelerated to reverse growing malnutrition, ensure that all people can access healthy diets, and provide sustainable livelihoods. At the same time, efforts to transform food systems work to reduce their environmental footprint. Farmers and small businesses along food value chains in low- and middle-income countries will have to adapt their practices to a climate marked by extreme weather events and changing seasonal patterns in order to meet growing and changing food demand, while also contributing to mitigation. Support for this critical transformation requires not only the development, dissemination, and adoption of appropriate low-emissions, climate-smart technologies and practices, but also a focus on the policies, institutions, governance, and behavior change that can promote sustainable, inclusive food systems.

This decade has been marked by multiple, often overlapping, crises. The COVID-19 pandemic, natural disasters, and the ongoing war in Ukraine have all threatened the fabric of our global food systems. But opportunities can be found amid crises, and the world’s food systems have demonstrated surprising resilience. With new evidence on what works, now is the time to rethink how we address food crises. Better prediction, preparation, and resilience building can make future crises less common and less devastating, and improved responses can contribute to greater food security, better nutrition, and sustainable livelihoods.

In 2022, the world faced multiple crises. Disruptions to food systems from the protracted COVID-19 pandemic, major natural disasters, civil unrest and political instability, and the growing impacts of climate change continued, as the Russia-Ukraine war and inflation exacerbated a global food and fertilizer crisis. The growing number of crises, their increasing impact, and rising numbers of hungry and displaced people have galvanized calls to rethink responses to food crises, creating a real opportunity for change.