Agenda 21 is a comprehensive plan of action to be taken globally, nationally and locally by organizations of the United Nations System, Governments, and Major Groups in every area in which human impacts on the environment.

Agenda 21 is divided into four main sections.

Section I: Social and Economic Dimensions
Includes combating poverty, changing consumption patterns, population and demographic dynamics, promoting health, promoting sustainable settlement patterns and integrating environment and development into decision-making.

Section II: Conservation and Management of Resources for Development
Includes atmospheric protection, combating deforestation, protecting fragile environments, conservation of biological diversity (biodiversity), and control of pollution.

Section III: Strengthening the Role of Major Groups
Includes the roles of children and youth, women, NGOs, local authorities, business and workers.

Section IV: Means of Implementation
Implementation includes science, technology transfer, education, international institutions and mechanisms and financial mechanisms