Transboundary Issue Index



Click on hyperlinks for relevant indicators


Major concern

Priority Issue

I: Freshwater shortage

  1. Modification of stream flow


  1. Pollution of existing supplies


  1. Changes in the water table

II: Pollution

  1. Microbiological


  1. Eutrophication


  1. Chemical


  1. Suspended solids


  1. Solid wastes


  1. Thermal


  1. Radionuclide


  1. Spills

III: Habitat and community modification

  1. Loss of ecosystems or ecotones


  1. Modification of ecosystems or ecotones, including community structure and/or species composition

IV: Unsustainable exploitation of fisheries & other living resources

  1. Over-exploitation


  1. Excessive bycatch and discards


  1. Destructive fishing practices


  1. Decreased viability of stock through pollution and disease


  1. Impact on biological and genetic diversity

V: Global change

  1. Changes in hydrological cycle and ocean circulation


  1. Sea level change


  1. Increased UV-B radiation as a result of ozone depletion


  1. Changes in ocean CO2 source/sink function