water consumption in arizona · 2016-07-15 · how much water do you use in the shower every year?...
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Water Consumption in Arizona
Omaya Ahmad
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Let’s talk about how we use water in the desert.
• About how long do you take in the shower?
– 4 minutes (1 radio song)– 8 minutes (2 radio songs)– 12 minutes (3 radio songs)
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Yearly Phoenix Rainfall• About 76 billion gallons
of rain fall in Phoenix every year.
• If we divided that amount of water and gave an equal amount to every person living in Phoenix, you would get about:– 35,500 gallons
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How much water do you use in the shower every year?
1. 4-minute shower = 12% of rainwater
2. 8-minute shower = 25% of rainwater
3. 12-minute shower = 37% of rainwater
Yearly Water Use and Arizona Rainfall
0
500010000
15000
20000
2500030000
35000
40000
4‐minute shower 8‐minute shower 12‐minute shower Rainfall perperson
Gallons of w
ater
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When do we use water?
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Phoenix rainfall available for 4 people
• 142,000 gallons
• On your water bottle, 1 cm = 10,000 gallons• 14.2 cm = 142,000 gallons
• Mark a line across the bottle at 14.2 cm from the bottom
• Color area in Blue
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Water Used to Make Clothes
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ClothesColor in Red
Are the blue jeans you own mostly bought new or used?
• One pair of new blue jeans1,700 gallons of water per person
• One pair of used or hand-me-down blue jeans 800 gallons of water per person
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Water Used for Recreation
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RecreationColor in Purple
Do you mostly swim in a private or a public pool?1. Private swimming pool
11,000 gallons of water per person per year2. Public swimming pool
10 gallons of water per person per year
Do you mostly play in a private backyard or a public park?1. Private backyard
2,500 gallons of water per person per year2. Public park
30 gallons of water per person per year
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Water Used to Make Food
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FoodColor in Green
What kind of food do you eat for dinner the most?
1. Beef 94,000 gallons of water per person per year
2. Chicken24,000 gallons of water per person per year
3. Pasta with no meat7,000 gallons of water per person per year
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Minimizing Water Use1. Clothing
Second-hand or used jeans x 4 = 3,200 gallons
2. RecreationPublic pool and public park x 4 = 160 gallons
3. FoodPasta with no meat x 4 = 28,000 gallons
Grand Total: 31,360 gallons of water per year for 4 people
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How can we save water?