Classification of Resources
- On the Basis of Origin: Biotic (flora, fauna) and Abiotic (rocks, metals).
- On the Basis of Exhaustibility: Renewable (solar, wind) and Non-Renewable (coal, petroleum).
- On the Basis of Ownership: Individual, Community, National, and International.
- On the Basis of Status of Development: Potential, Developed, Stock, and Reserves.
Sustainable Development & Rio Earth Summit (1992)
Sustainable development means development should take place without damaging the environment, and development in the present should not compromise with the needs of future generations.
- First International Earth Summit (Rio de Janeiro, Brazil, 1992): Over 100 heads of state signed the Declaration on Global Climatic Change and Biological Diversity, endorsing Agenda 21 to combat environmental damage, poverty, and disease through global cooperation.