There is an unprecedented interest in nature-based solutions for climate change mitigation and adaptation. But something very important is often missing from discussions of such solutions: the role of healthy soils. As habitats for plants and animals, as regulators of climate and water, and as the foundation of terrestrial ecosystems and the vast majority of our food production, soils are critical to all ecosystem services – including those that humans depend on for survival. This guidebook aims to demonstrate the importance of sustainable soil management (SSM) for adaptation to climate change, biodiversity conservation and the achievement of long-term food security. By adopting nature-based solutions such as ecosystem-based adaptation (EbA), farmers can dramatically increase their productivity while adapting to climate risks.