The document outlines several key challenges to achieving sustainable development. It discusses inequalities in access to resources like education, healthcare, food, and clean water between socioeconomic groups within countries and globally. Some specific challenges mentioned include climate change, increasing resource scarcity, biodiversity loss, and the need for more sustainable consumption, production, and management of natural resources. Achieving social inclusion and addressing issues related to demographics, migration, and health are also identified as important challenges for sustainable development.