'Taking Into Account Environmental Water Requirements in Global-
scale Water Resources Assessments', by: Vladimir Smakhtin, Carmen
Revenga, Petra Doll. The latest in the series of Research Reports
from the Comprehensive Assessment of Water Management in
Agriculture. Assessments of water availability, water use and water
stress at the global scale have not explicitly considered
requirements of aquatic ecosystems for water. This report summarizes
results of the first pilot global assessment of the total volume of
water required for the maintenance of freshwater ecosystem functions
in world river basins. These volumes are referred to as
Environmental Water Requirements.
URL:http://www.iwmi.cgiar.org/Assessment/files/pdf/publications/Resea
rchReports/CARR2.pdf