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What were new ideas 30 years ago, such as the concepts of participatory development and systems thinking, are now accepted norms in international development circles. The majority of professionals engaged in rural development accept the proposition that the people who participate in development should play an active role in defining, implementing, and evaluating projects intended to improve their productivity and lives. However this goal remains unrealized in many development programs. Harnessing the Power of Collective Learning considers the challenges and potential of enabling collective learning in rural development initiatives. The book presents 11 case studies of organizations trying to develop and implement collective learning systems as an integral component of sustainable development practice. Through systematic reflection on action and experience, key lessons and themes emerge regarding the nature of voice, participation, feedback loops, accountability and transparency, that will be useful for many others in the development community.

This open access book is the result of an expert panel convened by the Cornell Atkinson Center for Sustainability and Nature Sustainability. The panel tackled the seventeen UN Sustainable Development Goals (SDGs) for 2030 head-on, with respect to the global systems that produce and distribute food. The panel's rigorous synthesis and analysis of existing research leads compellingly to multiple actionable recommendations that, if adopted, would simultaneously lead to healthy and nutritious diets, equitable and inclusive value chains, resilience to shocks and stressors, and climate and environmental sustainability.

Technological and institutional innovations in agri-food systems (AFSs) over the past century have brought dramatic advances in human well-being worldwide. Yet these gains increasingly appear unsustainable due to massive, adverse spillover effects on climate, natural environment, public health and nutrition, and social justice. How can humanity innovate further to bring about AFS transformations that can sustain and expand past progress, while making them healthier for all people and for the planet that must sustain current and future generations? This report was commissioned by the Cornell Atkinson Center for Sustainability in response to an invitation from the journal Nature Sustainability, which—in collaboration with its new sister journal, Nature Food—wanted to devote its 2020 expert panel to this topic. The panel brought together experts who come from many different continents and who span a wide range of disciplines and organizations—from industry and universities to social movements, governments, philanthropies, institutional and venture capital investors, and multilateral agencies. The panel synthesized the best current science to describe the present state of the world's AFSs and key external drivers of AFS changes over the next 25–50 years, as well as tease out key lessons from the COVID-19 pandemic experience this year. As is increasingly widely recognized, the costs that farmers and downstream value chain actors incur and the prices consumers pay understate foods' true costs to society once one accounts for adverse environmental, health, and social spillover effects. Inevitable demographic, economic, and climate change in the coming decades will catastrophically aggravate these problems under business-as-usual scenarios. Innovations will be needed to facilitate concerted, coordinated efforts to transition to more healthy, equitable, resilient, and sustainable AFSs.