The correct answer is 1980. Key Points • Sustainable development is a concept that balances economic growth, social inclusion, and environmental protection for the benefit of present and future generations. • The term was first introduced in the World Conservation Strategy, a document presented by the International Union for Conservation of Nature (IUCN), in 1980. • The World Conservation Strategy emphasized the need for integrating conservation and development to achieve sustainable development. • This strategy aimed to address global issues such as resource depletion, biodiversity loss, and environmental degradation while promoting long-term economic and social stability. • The publication laid the foundation for further discussions and development of the concept, leading to its widespread adoption in global policies and frameworks. Hence, the correct answer is 1980. Additional Information • World Conservation Strategy (1980): • This document was developed by the IUCN in collaboration with the United Nations Environment Programme (UNEP) and the World Wildlife Fund (WWF). • The strategy outlined principles for conservation of biodiversity, sustainable use of natural resources, and maintenance of ecological processes. • It highlighted the importance of balancing development goals with conservation efforts to ensure environmental sustainability. • Evolution of Sustainable Development: • The concept gained further prominence in 1987 with the publication of the Brundtland Report, also known as "Our Common Future," by the World Commission on Environment and Development (WCED). • The Brundtland Report defined sustainable development as "development that meets the needs of the present without compromising the ability of future generations to meet their own needs." • In 1992, the United Nations Conference on Environment and Development (UNCED), or the Earth Summit, further solidified the concept of sustainable development, resulting in the adoption of the Agenda 21. • Importance of Sustainable Development: • Promotes long-term economic growth without causing irreversible damage to the environment. • Encourages the efficient use of resources and equitable distribution of benefits. • Addresses global challenges such as climate change, poverty, inequality, and biodiversity loss. Important Points • Key Characteristics of Sustainable Development: • Focuses on intergenerational equity to ensure future generations have access to resources and opportunities. • Emphasizes the integration of economic, social, and environmental dimensions of development. • Supports the adoption of innovative technologies and practices to reduce environmental impact. • Examples of Sustainable Practices: • Adopting renewable energy sources like solar and wind power. • Implementing eco-friendly agricultural techniques such as organic farming. • Promoting recycling and waste management to reduce pollution and conserve resources.