Cool water - Blue is the New Green
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Transcript of Cool water - Blue is the New Green
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Cool Water:Blue Is The New Green
JERRY YUDELSON • YUDELSON ASSOCIATES • TUCSON, ARIZONA
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Cool Water:Blue Is The New Green
JERRY YUDELSON • YUDELSON ASSOCIATES • TUCSON, ARIZONA
Our Watery Planet
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Key Take-Aways
Water is the next big (green) thing
International experience and technology can be adapted
Major opportunities: owners, designers, facility managers, contractors and the public
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Why Water Efficiency?
Water: 21st Century oil
Freshwater supply limited
Population/urban growth: large water footprint
Global warming hits water
Major droughts since 2006
Water efficiency leads to water/energy conservation
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Water Is the Oil of the 21st Century
Resource conflicts
Existing water sources fully allocated
Next urban/rural battleground
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Freshwater is inherently limited
No more water since Adam & Eve
Usable freshwater a tiny fraction
Much is too polluted to drink
Aquifer depletion for water supply
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Freshwater
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Water Footprint: Often Hidden
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Global Warming
Much of world supplied in summer with snowmelt
Changes in climate = smaller snowpack, larger spring runoff, more devastating floods, reduced summer stream flows, more drought events
Water pricing is going to be a huge issue
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Water/Energy Nexus
Hydropower still vital
Water supply requires energy
Energy supply requires water
Not enough water for future energy, or energy for future water!
Lake Lanier, Atlanta, GA
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Major Droughts Since 2006
In the U.S.
Atlanta
South Texas (Austin/San Antonio)
California
Murray-Darling, Australia’s Largest River
In Australia
Every major city
Murray-Darling basin
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Water Conservation vs. Water Efficiency
Conservation means less total use
Efficiency does not guarantee conservation
Behavior modification equally important
Some water conservation counter-productive
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Water Conservation vs. Water Efficiency
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Your Personal WaterConservation Audit
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Australia
20 million people
Most live near the coasts
Except for tropics, country is quite dry
Global warming has moved storm tracks south
Biggest drought in 117-year recorded history since 2005
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Australia
Coordinated response by national/state governments
$13 billion plan ($650 per person)
Water restrictions in all urban areas
Product innovations
WELS rating is mandatory for product sales since 2006
Product innovations
Rainforest in Tasmania, Australia
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Australia
Plumbing industry front and center
Large water utilities recycle water
Public is cooperating
Desalination is a viable option
Falcon water-free urinals
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Australia: Lessons Learned
In a crisis, everything’s on the table
Easier to do politically
System favors (big) long-term solutions
Don’t neglect public participation
New technology can be mandated
Exotic solutions can be tried and evaluated
Murray-Darling — Australia’s Largest River
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Germany
80 million people
A leader in confronting global warming
Focus on rainwater harvesting
New technologies emerging for gray water reuse
Top: Heidelberg, GermanyBottom: Water House, Pforzheim, Germany
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Pontos AquaCycle Gray Water System
filter unit
recycling chambers
sediment disposal
drinking water back-up
UV-disinfection
control unit
booster pump
recycled water tank
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Blue/Green Issues
Water shortages/droughts in many states
Financial/regulatory incentive programs
Green certification programs such as LEED
Low-impact development (LID)
Rising costs for water supply and sewage treatment
Stakeholder concerns; political and regulatory changes
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Inhibiting Forces
Water is still cheap in most areas
High water use lifestyles still preferred
Unintended consequences
Codes need to change
Lack of whole systems thinking
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Opportunities
“Green plumbing”
Building fixture retrofits
Irrigation controls
NEWater systems
New business/technical specialties
Use nonpotable sources
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Must design more water-efficient buildings
What will green & WaterSense® buildings look like in 2015?
Net zero water use
Onsite treatment/reuse
NEWater from many sources
Efficient systems
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Living Building Challenge
“LEED on Steroids”
• Concept: live off annual flows of energy and water
• Onsite blackwater treatment
• No offsite water supply
Omega Institute, NY
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What Should the Public Sector Do?
• Instill conservation ethic
• Price for conservation
• Incentivize retrofitso Technical assistance
• Regulate new buildings
• Find new supplieso Water reuse
o Desalination
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Where Does This Leave Business?
• A very dynamic future: much opportunity
• New technologies, systems, approaches
• New products coming to market
• Larger questions: water footprint
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The Future of Green is Blue, But…
• If you want to score, run to where the ball is going, not to where it is.
• Ask yourself: how green will the built environment be in 2015? What will be the New Normal?
• Water-efficient buildings will certainly do better!
Spain Wins FIFA World Cup 2010
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We CAN prevent future urban water crises, but we need to start today!
When your house is on fire, it’s too late to dig a well.
— Benjamin Franklin
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Cool Water:Blue Is The New Green
JERRY YUDELSON • YUDELSON ASSOCIATES • TUCSON, ARIZONA
Our Watery Planet
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Thank you!
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Or view this presentation atwww.slideshare.net/yudelson