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Water Resources Vulnerability

WorldPhysical EnvironmentSocial / HealthEconomic

Measure of projected water stress in the year 2020; water stress is the ratio of total annual water withdrawals to total available annual renewable supply.

World Resources Institute

A world map shows water resources vulnerability.

Areas shaded in light yellow represent regions with arid and low water use, predominantly found in parts of Australia (central regions), Egypt, Saudi Arabia, Libya, Mauritania, and Yemen. Regions with low vulnerability, less than 10 percent, are shown in light orange and are primarily located in most parts of Africa, South America, Canada, Russia, most of Asia. Areas with low-medium vulnerability, ranging from 10 to 20 percent, are depicted in orange and are scattered throughout some parts of Japan and U S A, some parts of Asia and Europe. Medium-high vulnerability areas, between 20 to 40 percent, are shown in light red and are mainly found in South Africa, China, and many more. High vulnerability regions, ranging from 40 to 80 percent, are shaded in red and are located in parts of U S A, Europe, and Asia. Areas with extremely high vulnerability, over 80 percent, are shown in dark red and include most of U S A and Asia. Some areas such as Greenland and South Pole are marked with a gray shade, indicating no data available for those regions.

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Water Resources Vulnerability

Brown Coal (Lignite) Mines

Ecological Regions: Level 2 Labels

Oil Slicks (1990s)

No data

Arid and low water use

Low (<10%)

Low-medium (10-20%)

Medium-high (20-40%)

High (40-80%)

Extremely high (>80%)

Brown Coal (Lignite) Mines

ALASKA BOREAL INTERIOR

ALASKA TUNDRA

ARCTIC CORDILLERA

ATLANTIC HIGHLANDS

BOREAL CORDILLERA

BOREAL PLAIN

BROOKS RANGE TUNDRA

CENTRAL USA PLAINS

COLD DESERTS

EVERGLADES

HUDSON PLAIN

MARINE WEST COAST FOREST

MEDITERRANEAN CALIFORNIA

MISSISSIPPI ALLUVIAL AND SOUTHEAST USA COASTAL PLAINS

MIXED WOOD PLAINS

MIXED WOOD SHIELD

NORTHERN ARCTIC

OZARK/OUACHITA-APPALACHIAN FORESTS

SOFTWOOD SHIELD

SOUTH CENTRAL SEMIARID PRAIRIES

SOUTHEASTERN USA PLAINS

SOUTHERN ARCTIC

TAIGA CORDILLERA

TAIGA PLAIN

TAIGA SHIELD

TEMPERATE PRAIRIES

TEXAS-LOUISIANA COASTAL PLAIN

UPPER GILA MOUNTAINS

WARM DESERTS

WEST-CENTRAL SEMIARID PRAIRIES

WESTERN CORDILLERA

WESTERN SIERRA MADRE PIEDMONT

Oil Slicks (1990s)

Missouri
45.5%14.9%0.131%5.37%
Kansas
0.176%1.82%13.8%68.4%
South Carolina
0.748%24.6%36.2%
Manitoba
0.656%83.1%11.7%2.04%1.39%
Oklahoma
11.4%5.60%4.28%17.9%30.0%
Idaho
0.772%13.8%28.4%8.83%44.9%9
Arizona
3.34%9.37%6.97%0.448%4.52%211
Utah
20.8%13.7%0.313%0.420%49.5%111
Yukon
0.923%99.0%1
Northwest Territories
0.342%3.62%3111
Wyoming
21.7%0.541%70.3%11
Nunavut
0.979%18.2%8204
Montana
28.7%2.60%14.6%5.24%35.2%313
North Dakota
7.38%3.22%4.45%0.249%9.67%36.7%21
Saskatchewan
4.25%59.9%2.62%2.54%2.67%0.868%1
Nebraska
0.605%3.54%22.3%73.5%1
Oregon
14.3%48.2%11.8%4.82%0.772%0.847%1
New Brunswick
99.5%1
New Mexico
30.3%0.128%7.32%21.7%4
Wisconsin
5.67%25.0%40.8%9.68%1
Newfoundland and Labrador
74.5%1
Michigan
56.0%3.00%4.63%9.70%111
Alberta
3.52%56.8%0.267%4.01%3.67%11.4%11
Colorado
0.795%9.40%85.2%1
Nevada
8.21%0.731%1.40%0.413%2.80%24.0%21
Québec
99.1%0.240%111211
California
0.688%12.5%0.232%17.8%2.26%1.00%2211
South Dakota
32.7%3.47%37.3%22.0%261
Minnesota
21.0%3.81%13.1%23.4%22.0%1
Iowa
26.6%12.5%44.0%16.3%0.628%1
Alaska
0.132%87.9%0.193%0.154%1.32%2815160.113%
District of Columbia
100%100%
Florida
10.4%12.0%0.279%0.266%0.590%110.837%
New Hampshire
17.2%33.7%40.5%8.46%57.6%
Rhode Island
0.183%86.5%6.09%195.0%
Vermont
7.27%88.3%4.41%5.93%
Washington
72.6%3.37%5.42%0.287%6.53%120.496%
Maine
94.9%2.65%0.228%0.817%15.06%
Kentucky
76.6%17.7%5.68%39.9%
Nova Scotia
0.182%80.1%21.05%
Virginia
11.9%0.775%16.4%1.64%62.1%
Delaware
0.105%37.7%61.1%199.3%
Prince Edward Island
98.5%10.308%
Mississippi
74.5%1.57%23.9%1129.7%
West Virginia
63.6%17.6%14.6%13.63%
Texas
4.07%3.41%2.84%1.94%22.5%2.71%121119.3%
Louisiana
54.5%20.6%5.75%89.8%
Hawaii
7.82%1.73%
North Carolina
0.116%12.2%54.7%3.14%0.982%1116.0%
Alabama
92.6%5.45%0.987%18.82%
British Columbia
92.0%1.55%0.285%11110.210%
New Jersey
0.162%3.07%94.0%1.76%199.2%
Connecticut
0.460%29.6%24.9%23.8%1.35%99.9%
Pennsylvania
1.42%27.8%49.9%3.96%124.2%
Massachusetts
0.206%0.166%33.6%8.30%30.7%198.1%
Georgia
8.71%47.0%37.9%0.104%
New York
25.4%5.89%56.3%5.19%0.401%2126.9%
Maryland
0.151%4.45%64.3%1.05%8.49%76.4%
Tennessee
90.1%5.50%1.03%
Ontario
97.2%1.67%1.13%1112.30%
Arkansas
12.6%46.8%33.2%6.01%110.397%
Ohio
3.42%0.721%29.0%18.7%
Indiana
0.434%1.19%8.61%4.78%144.2%
Illinois
30.9%0.187%44.1%9.75%16.79%
0.16.0