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UNESCO: United Nations Educational Scientific and Cultural Organization


Natural Sciences

Europe & North America


  • © UNESCO/Krasimr Kirov
  • Srebarna Biosphere Reserve, Bulgaria

Bulgaria’s involvement in UNESCO freshwater programmes focuses on transboundary issues and integrated management: the Mesta-Nestos basin, shared with Greece, serves as a demonstration basin for the Hydrology for the Environment, Life and Policy (HELP) programme.

The country also participates in the Internationally Shared Aquifers Resources Management Programme (ISARM) in the Balkans, which aims to compile a world inventory of transboundary aquifers and develop wise practices and guidance tools concerning shared groundwater resources management through a network of experts and specialists.


Bulgaria is involved in a large range of earth sciences projects, from the metallogeny of central Asia to the more closely related study of the Black Sea Corridor. Below you can access the projects that are currently being implemented in the country within the framework of UNESCO’s Natural Sciences Sector.



- Hydrology for the Environment, Life and Policy (HELP) project in the Mesta-Nestos basin (Bulgaria/Greece) More

- Internationally Shared Aquifers Resources Management Programme (ISARM) in the Balkans

- Alpine and Mediterranean Flow Regimes from International Experimental and Network Data (AMHY FRIEND)

- World Water Assessment Programme (WWAP) Danube River Basin case study More


People, Biodiversity and Ecology

- Biosphere Reserves (WNBRs)


Earth Sciences

- Triassic Time and Trans-Panthalassan Correlations (IGCP, Project 467)

- Late Variscan terrestrial biotas and palaeoenvironments (IGCP, Project 469)

- GIS metallogeny of Central Asia (IGCP, Project 473)

- Au-Ag-telluride-selenide deposits (IGCP, Project 486)

- Ordovician palaeogeography and palaeoclimate (IGCP, Project 503

- Coastal vulnerability related to sea level change (IGCP, Project 515)

- Black Sea-Mediterranean Corridor during the last 30,000 years: Sea level change and human adaptation (IGCP, Project 521)

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