Blue Planet Sanitation, climate change (drought, flooding, snowpack loss), shortages, pollution, hydropower, population growth, irrigation, biodiversity.

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Presentation transcript:

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

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

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

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.”

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

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

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

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

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

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

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

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

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

Technology exists- what are other limitations? http://www.ted.com/talks/lang/eng/michael_pritchard_invents_a_water_filter.html