Water Management Challenges 2015-01-14 1 Water Resource Management Challenges in the 21st Century Balázs M. Fekete Department of Civil Engineering CUNY CREST Institute CUNY Environmental CrossRoads Initiative The City College of New York City University of New York
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Water Management Challenges2015-01-14 1
Water Resource ManagementChallenges in the 21st Century
Per Capita [W] Total [TW] Scenario 1 Scenario 2 Scenario 3 Scenario 4
Population
Pe
r C
apita
Co
nsum
ptio
n [
W]
Tota
l Con
sum
ptio
n [T
W]
2000 kCal day-1 ~ 100 W Solar insolation over land is 183 W m-2
Water Management Challenges2015-01-14 8
Random Numbers
● 0.9 billion people has no access to safe drinking water
● 2.3 billion people has no piped water in their home● 2.6 billion people has no proper sanitation● 1.1 billion people defecate in the open● 2 million people (mostly children) die every year
due to diarrheal diseases (285/million)● 70,000 mostly elderly people died (harvesting) in
the 2003 European heatwave affecting 0.5 billion population (140/million)
● 184 l/capita released untreated would require 18,720 km3 yr-1 dilution water