Cambridge | Jan-14 | Water for All: Technological and Cultural Implications
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Transcript of Cambridge | Jan-14 | Water for All: Technological and Cultural Implications
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Water for All: Technological and
Cultural Implications
Professor Michael Depledge DSc FSB FRSA
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The Global Population
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Contaminants of Water
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Benefits of
New Technologies
Nanotechnology & the Life Straw
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The Lifestraw
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Nanomaterials: Regulatory Challenges
• Exposure ? - too small to detect
• Toxicity ? - altered chemistry, nano-
toxicology)
• Persistence ? – lack of monitoring tools
• Current regulatory protection - do production
volumes trigger action ?
• Regulation ?- who is responsible for
regulating and monitoring nano-materials in
the environment ?
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What kind of studies are required
to demonstrate the benefits of
clean water technologies?
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Solar powered water purifiers
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Energy for moving water around
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Smart Villages: Combined Approaches?
Clean Water
Light Energy
Communication
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Does access to
clean water fuel
demand?
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Unintended consequences of
providing clean water.
• Increased demand for consumer products
• Increased production of waste (with lack
of waste disposal infrastructure).
• Loss of cultural practices and local
lifestyles
• Increased dependence on technologies
and loss of resilience.
• Marked increase in carbon and water
footprints.
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Unexpected challenges associated
with providing clean water.
• Unwillingness to adopt new technologies
• Ownership
• Theft of equipment
• Corruption
• Competing demands
• Conflict
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May, 2009.
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“We are the healthiest, wealthiest,
longest-lived people in history” “Risk” by Dan Gardner