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Water Resources Vulnerability

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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

Global Mean Temperature, July

Hydroelectric Power Production

No data

Arid and low water use

Low (<10%)

Low-medium (10-20%)

Medium-high (20-40%)

High (40-80%)

Extremely high (>80%)

0 to 2°C

3 to 5°C

6 to 8°C

9 to 11°C

12 to 14°C

15 to 17°C

18 to 20°C

21 to 23°C

24 to 26°C

27 to 29°C

over 30°C

Bad Creek Hydroelectric Power Plant SC USA

Bath County Pumped Storage Hydroelecric Power Plant VA USA

Beauharnois Hydroelectric Power Plant Canada

Bersimis-1 Hydroelectric Power Plant Canada

Blenheim Gilboa Pumped Storage Hydroelectric Power Plant NY USA

Bonneville Hydro Power Plant OR USA

Boundary Dam Hydro Power Plant WA USA

Castaic Pumped Storage Hydroelectric Power Plant CA USA

Chief Joseph Hydro Power Plant WA USA

Churchill Falls Hydroelectric Generating Station Canada

G M Shrum (W.A.C. Bennett) Hydroelectric Power Plant Canada

Glen Canyon Dam Hydro Power Plant AZ USA

Grand Coulee Hydro Power Plant WA USA

Helms Pumped Storage Hydroelectric Power Plant CA USA

Hoover Dam Hydro Power Plant AZ/NV USA

John Day Hydro Power Plant OR USA

Kettle Rapids Hydroelectric generating Station Canada

La Grande-1 Hydroelectric Generating Station Canada

La Grande-2-A Hydroelectric Generating Station Canada

La grande-3 Hydroelectric Generating Station Canada

La grande-4 Hydroelectric Generating Station Canada

Limestone Hydroelectric Generating Station Canada

Long Spruce Hydroelectric Geneerating Station Canada

Ludington Hydro Power Plant MI USA

Manic-2 (Jean-Lesage) Hydroelectric Generating Station Canada

Manic-3 (Rene-Levesque) Hydroelectric Generating Station Canada

Manic-5 Hydroelectric Generating Station Canada

Manic-5-PA Hydroelectric generating Station Canada

Mica Creek Hydroelectric Power Plant Canada

Muddy Run Pumped Storage Hydro Power Plant PA USA

Northfield Mountain Pumped Storage Hydro Power Plant MA USA

Outardes-3 Hydroelectric Power Plant Canada

R.H. Saunders Hydroelectric Power Plant Canada

Raccoon Mountain Pumped Storage Hydro Power Plant TN USA

Revelstoke Hydroelectric Power Plant Canada

Robert Moses Niagara Hydro Power Plant NY USA

Robert-Bourassa Hydroelectric Generating Station Canada

Rocky Mountain Pumped Storage Hydro Hydro Power Plant GA USA

Rocky Reach Hydro Power Plant WA USA

Sir Adam Beck II Hydroelectric Generating Station Canada

The Dalles Hydro Power Plant OR USA

Toktogul Hydroelectric Power Plant Kyrgyzstan

Wanapum Hydro Power Plant WA USA

Alaska
0.132%87.9%0.193%0.154%1.32%2.07%0.102%1.55%61.7%
Utah
20.8%13.7%0.313%0.420%49.5%22.4%10.2%31.4%
Yukon
0.923%99.0%1.02%5.15%93.8%
Northwest Territories
0.342%3.62%0.878%21.6%7.94%10.5%59.1%
District of Columbia
100%100%
Florida
10.4%12.0%0.279%0.266%0.590%84.0%16.0%
Idaho
0.772%13.8%28.4%8.83%44.9%52.5%45.2%2.21%
New Hampshire
17.2%33.7%40.5%8.46%100%
Rhode Island
0.183%86.5%6.09%62.8%37.2%
Vermont
7.27%88.3%4.41%100%
Wyoming
21.7%0.541%70.3%57.2%36.6%6.22%
Nunavut
0.979%18.2%22.1%39.9%23.5%12.2%2.23%
Montana
28.7%2.60%14.6%5.24%35.2%56.5%21.6%21.8%
Maine
94.9%2.65%0.228%0.817%21.3%78.7%
North Dakota
7.38%3.22%4.45%0.249%9.67%36.7%37.6%62.4%
Kentucky
76.6%17.7%5.68%100%
Nova Scotia
0.182%80.1%100%
Delaware
0.105%37.7%61.1%43.6%56.4%
Prince Edward Island
98.5%100%
Saskatchewan
4.25%59.9%2.62%2.54%2.67%0.868%1.64%24.6%49.4%17.2%1.04%
Mississippi
74.5%1.57%23.9%100%
West Virginia
63.6%17.6%14.6%11.9%88.1%
Nebraska
0.605%3.54%22.3%73.5%1.32%35.2%63.5%
Texas
4.07%3.41%2.84%1.94%22.5%2.71%7.04%70.2%22.7%
Missouri
45.5%14.9%0.131%5.37%100%
Louisiana
54.5%20.6%5.75%100%
Hawaii
7.82%97.3%2.67%
North Carolina
0.116%12.2%54.7%3.14%0.982%26.8%73.2%
New Brunswick
99.5%73.4%26.6%
Alabama
92.6%5.45%0.987%100%
New Mexico
30.3%0.128%7.32%21.7%0.149%84.2%15.7%
Kansas
0.176%1.82%13.8%68.4%6.28%93.7%
Wisconsin
5.67%25.0%40.8%9.68%1.04%35.2%63.8%
New Jersey
0.162%3.07%94.0%1.76%95.6%4.35%
Alberta
3.52%56.8%0.267%4.01%3.67%11.4%50.7%34.5%14.8%
Colorado
0.795%9.40%85.2%14.4%39.4%44.0%2.22%
Nevada
8.21%0.731%1.40%0.413%2.80%24.0%15.3%31.5%45.5%7.66%
Maryland
0.151%4.45%64.3%1.05%8.49%74.4%25.6%
Oklahoma
11.4%5.60%4.28%17.9%30.0%100%
Arkansas
12.6%46.8%33.2%6.01%100%
South Dakota
32.7%3.47%37.3%22.0%75.3%24.7%
Ohio
3.42%0.721%29.0%58.5%41.5%
Indiana
0.434%1.19%8.61%4.78%29.9%70.1%
Minnesota
21.0%3.81%13.1%23.4%22.0%4.10%41.1%46.2%8.52%
Iowa
26.6%12.5%44.0%16.3%0.628%11.6%88.4%
Illinois
30.9%0.187%44.1%9.75%23.5%76.5%
Arizona
3.34%9.37%6.97%0.448%4.52%31.1%44.3%24.6%11
Washington
72.6%3.37%5.42%0.287%6.53%23.4%27.9%35.5%111111
Virginia
11.9%0.775%16.4%1.64%48.6%51.4%1
Oregon
14.3%48.2%11.8%4.82%0.772%0.847%11.6%83.6%4.75%11
British Columbia
92.0%1.55%0.285%85.4%13.9%0.706%111
Newfoundland and Labrador
74.5%4.91%37.1%57.9%1
South Carolina
0.748%24.6%36.2%2.93%97.1%1
Michigan
56.0%3.00%4.63%9.70%12.8%28.4%58.8%1
Connecticut
0.460%29.6%24.9%23.8%1.35%6.03%94.0%1
Pennsylvania
1.42%27.8%49.9%3.96%99.0%1.04%1
Massachusetts
0.206%0.166%33.6%8.30%30.7%98.7%1.07%0.220%1
Georgia
8.71%47.0%37.9%100%1
New York
25.4%5.89%56.3%5.19%0.401%60.0%40.0%111
Québec
99.1%0.240%1.08%22.4%41.4%22.6%3.88%111111111111
Manitoba
0.656%83.1%11.7%2.04%1.39%32.7%26.1%29.9%11.4%111
Tennessee
90.1%5.50%100%1
Ontario
97.2%1.67%1.13%10.3%11.0%55.9%3.50%2.10%1
California
0.688%12.5%0.232%17.8%2.26%1.00%0.261%27.4%0.828%11.3%14.3%0.918%11
0.16.0