Topic of Discussion
“Population Pressure: Land and Water”
Presented by the Plan B Project Team
Plan B 4.0: Mobilizing to Save Civilizationby Lester R. Brown
Source : NASA / aerosols.hamptonu.edu
Dust storms in Africa
Source: Plan B – Mobilizing to Save Civilization, Lester Brown
Every day we are drinking 4 Liters
of Water and “eating” 2000
Liters of Water
Water Usage
Cows Sheep Pig Goat Chicken
6987
4719
2722 24951951
Liters of water to produce 1 pound of animal meat
Source: http://www.waterfootprint.org/
Source: gracelinks.org
Water Usage
Steel for a single car
4 tires A pair of jeans
Laptop 1 lb of paper
Bike T-shirt Gallon of paint
32,000
2,073 1,800 1,500 1,160 500 400 13
Gallons to make Industrial Products
Information acquired from waterfootprint.org
Source: http://groundwater.sdsu.edu/
Water Depletion
• Borrego Valley declined 2 ft (0.6m)/year over 20 years.
• Over 35 years, the water table dropped 150 ft (45m) in Baja California and groundwater wells have dried up.
Source: Rain Water Harvesting at Silvassa
India
Start Video
Source: http://www.foxnews.com/story/0,2933,294370,00.htmlSource: www.waterfootprint.org
~550 million Big Macs
~692 Billion Gallons of
Water=
Every Year….
enough to sustain 1,000,000 People a year!