Population sustainability
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Transcript of Population sustainability
• How is Sustainability Measured ?
• What Does Sustainability Mean ?
• What the Current Problems ?
• Where are These Problems ?
• How to Solve Them !
• Global Effects !
• Rich & Poor Nation Differences !
2 – Energy Gurus • Net carbon
• Total carbon
• Zero energy
• Passive energy
• Net-zero energy
• Alternative Energy
1 – Green Groups • Comfort
• Living roofs
• Living walls
• Indoor air quality
• Oxygen depletion
• CO & CO2 Conversion
4 – Holistic Engineers
• Longevity
• Better Durability
• Disaster-resistance
• Using less to do more
• Best cost/performance
• Lowest embodied energy
• Smart-change optimizing new
materials-methods-systems
• Offset constant increases in material usage
3 - Environmentalists
• Recyclable
• Less waste
• Easily reused
• Easy to regenerate
• Low carbon footprint
• Resource Conservation
• Low impact on resources
• Conservation for use by future generations
• There is no impact free material
• There is no impact free building
• There is no impact free consumption
• Rich nations must do more with less
• Poor nations must consume wisely
• The Largest populations have the greatest impact
• Rich & Poor See Different Environmental Culprits
• Identify Their Problems to find Their Solutions
• Rich Nations
– Have excessive consumption
– Need less consumption - Difficult
• Poor Nations
– Have unwise consumption
– Need efficient consumption - Easier
Where is material usage greatly increasing ? Where will be the greatest consumption ?
Is the Population Explosion the result of Higher birth rates, or Lower death rates ?
• 7 Billion current world population
• 2 Billion without housing, food, & water (29%)
• 75 Million annual population growth (20 M Homes)
• Insufficient food production by 2050
• There will never be impact-free consumption
• Housing – A major offender, is overusing natural resources, can’t keep pace, and lacks enough trained workers – What can we do about this ?
• IF everyone on the planet consumed like
– Americans, it would take 9.3 planets to sustain them;
– British, it would take 3.2 planets;
– French, it would take 2.7 planets;
– Chinese, it would take 0.9 planets
• Greatest Rich Nation Excesses
– Energy – Water – Food – Housing
• Greatest Poor Nation Needs
– Housing – Food – Water - Energy
• Newer - Approaches & Methods
• Better - Materials & Utilization
• Faster - Systems & Production
• Lower - Energy Waste
• Less - Cost
• Not Just Re-packaged or Cosmetic Do-overs
• Re-thinking
• Better Analysis
• Supply Relationships
• Overcoming Traditions
• Concerns for the Planet
• Re-education and Training
• Redistributing Natural Resources
• Conservation for Future Generations
• Or, Rich Nations Win - Poor Nations Lose
• 20 Million New Homes/Year
– Build stronger
– Inventory to build
• Three 2,000 sq ft (193 sq m) homes
• Replace lumber with composites
• More Accurate Methods
– Assemble on Jigs
– Under Supervision
• Least Cost Production Line
– 2 sides for assembly
– Workers inside and outside
• High production
– Easy to start a new business
• Faster Assembly
• Least Expensive
• Stronger - Safer
• Longer-lasting
• Simpler
• Quicker
• Perfect