• 1971
  • UNESCO
  • inter-govt. scientific prog
    • to study ➡️ scientific basis of inter-relationship b/w man & it’s nature

Identification of Certain Regions where this exists

  1. traditional lifestyle of tribals is practiced
  2. indigenous genetic materials of domestic plants / animals still preserved
  3. sustainable development / conservation of biodiversity
    • eco-tourism

Such regions are ➡️ Biosphere Reserves