1. Blue Planet
Sanitation, climate change (drought, flooding, snowpack loss), shortages, pollution, hydropower, population growth, irrigation, biodiversity
Efficient use of water
Inexpensive sanitation + education
Pollution Prevention

2. Global ecosystem service
Precipitation
Evaporation
Runoff
Groundwater
Runoff
Global ecosystem service
cun83198_0221.jpg

3. Global access to clean water
Limited access in Africa, Asia
United Nations Educational Scientific and Cultural Organization

4. Global threats to water supply UNESCO, 2011: “In less than 25 years, 2/3 of world’s population will be living in water-stressed countries.”

5. Lake Victoria Nonpoint source pollution, untreated sewage
Water diseases, including cholera, diarrhea, skin diseases
East Africa: Kenya, Tanzania, Uganda
Image via: Smuchai on Flickr.com

6. Citarum River Indonesia Nonpoint & point source pollution:
500 factories along banks
Fish for trash, not fish
Sanitation and health
Image via: Sea-way.org

7. Great Lakes United States, Canada Auto, oil, steel, chemical industry
Urban transportation
Not the worst, but not yet clean
Image via: Getty Images - Dennis Flaherty

8. Yellow River China Chemical spills, damming, urbanization
Provides water for millions
1/3 of the river is unusable
Image via: Getty Images - ChinaFoto Press

9. Matanza-Riachuela River
Buenos Aires, Argentina
325,000 tons of sewage every day
Lead, mercury, cadmium, nitrates, copper in the drinking water for 5 million people
Image via: FJTU on Flickr.com

10. Lake Onondaga Syracuse, New York Hazardous waste site Industrial use
Nonpoint source pollutants

11. Sarno River Italy Agricultural and sewage runoff Floods local lands
Image via: Photos in Love on Flirckr.com

12. Lake Karachay
Russia
Radioactive waste dump from Mayak Nuclear Waste Storage
Seeping through groundwater to the Arctic
Enter global hydrological cycle

13. Yumana River
India
Spiritual river for millions
3.5 billion liters of sewage per day
100,000x greater than safe bathing limits
City removes 1.1 billion liters each day
Holy leaders considering pilgrimage boycott

14. Technology exists- what are other limitations?