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United States of America

Dynamics of water use in USA by estimates of SHI (1998)


 



 

 
1950
1960
1970
1980
1990
1995
2000
2010
2025
                   
Popultion, mln *
152
178
204
227
250
263
275
297
329
Irrigation area, th.ha **
10400
13800
15900
20600
18400
20400
21050
23300
24740
GNP, $US per capita ***
   
4960
12830
22380
       
Water withdrawal, km 3****
247
347
470
538
492
503
512
530
550
Water consumption, km 3****
86.6
109
143
163
154
164
166
171
177
notes: * - Source: United Nations "Urban and Rural Areas 1950-2025, the 1995 Revision" (World Resources Institute data)
** - 1950-1990 Source: Estimated use of water in the USA (1950-1990); 1995 – 2025 - SHI forecast

*** - Source: World Bank World Tables 1994 update (World Resources Institute data)

**** - 1950-1990 Source: Estimated use of water in the USA (1950-1990)


 



 

Water use of USA (km 3 /year) by data of selected publications


 



 

author
 
year
1985
1990
2000
IIASA
withdrawal
1993
 
540
 
WRI
withdrawal
1991-98
467
   
WWDS
withdrawal
1998
 
467
 
Gleick
withdrawal
1998
 
467
 
USWRC
withdrawal
1978
   
422
St.Ab.US
withdrawal
1980
   
423
notes: all estimates include water use for agriculture, industrial & domestic needs;
IIASA – Kulshreshtha S.N., 1993. World Water Resources & Regional Vulnerability: impact of future changes. Luxenburg: IIASA.

WRI – World Resources (1991-1992, 1992-1993, 1994, 1996, 1997-1998 ) – N.Y.: Oxford Univ. Press.

WWDS – World Water Resources. Demand & Supply: 1990 to 2025., 1998. Scenarious & Issues. Colombo:IWMI.

Gleick, 1998 - The World’s Water. The Beneficial Report on Freshwater Resources 1998-1999, 1998, Peter Gleick, Washington, D.C. Covello, California.

USWRC – US Water Resources Council. 1978. The Nation’s Water Resources: 1975-2000, vol.1. Summary. Washington.

St.Ab.US – Statistical Abstract of the US. 1980., Washington