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History Recap. Scott Matthews 12-712/ 19-622 Lecture 2. Administrative Issues. How are we doing on seats? Recheck list. Please sign paper going around and circle or add your name. TAs: Shaz Attari, Mike Blackhurst. Contact info coming on syllabus / web page When should office hours be?

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history recap

History Recap

Scott Matthews

12-712/ 19-622

Lecture 2

administrative issues
Administrative Issues
  • How are we doing on seats? Recheck list.
  • Please sign paper going around and circle or add your name
tas shaz attari mike blackhurst
TAs: Shaz Attari, Mike Blackhurst
  • Contact info coming on syllabus / web page
  • When should office hours be?
    • HWs generally due on Wednesdays
  • Sustainability
  • Sustainable “X”
  • Green / Green “X”
  • Green Engineering
  • Sustainable Engineering
  • ...
sustainable engineering from cse website
Sustainable Engineeringfrom CSE website
  • Engineering for human development that meets the needs of the present without compromising the ability of future generations to meet their own needs
    • Using methods that minimize environmental damage to provide sufficient food, water, shelter, and mobility for a growing world population
    • Designing products and processes so that wastes from one are used as inputs to another
    • Incorporating environmental and social constraints as well as economic considerations into engineering decisions
green engineering
Green Engineering
  • Anastas: “Achieving sustainability through science and technology”.
  • “The 12 Principles of Green Engineering provide a framework for scientists and engineers to engage in when designing new materials, products, processes, and systems that are benign to human health and the environment. A design based on these moves beyond baseline engineering quality and safety specifications to consider environmental, economic, and social factors.
  • Water
  • Air
  • Energy
  • Materials
  • Natural regeneration (ultimate sink?)
pareto efficiency
Pareto Efficiency
  • Cliff’s reading discussed need to satiate the rich without compromising the poor/etc
  • Opportunity Cost
lessons over time
Lessons over time
  • We have been living and dealing with issues relevant to sustainability (and interfering with natural systems intentionally and accidentally) for 5000 years but have not necessarily LEARNED from our experience
    • Crop mutations by accident/ignorance
interaction of human and natural systems
Interaction of Human and Natural Systems
  • Progress was seen as triumph over nature
  • We knew how to smelt metals but did not necessarily have sufficient local resources (eg fuelwood) to do it.
    • Led to deforestation
    • Tragedy of the Commons
  • We were unable as society to cope with drought/flood variations
  • Due to various factors, availability of food collapsed, as did population
  • Over time, we just engineered other systems as backups (they too can fail)
    • Our continued push was to (re)engineer a solution to every problem
  • Now we look to understand (all) potential problems and engineer a better
  • Think about the plan/design needed for the pyramids. How would the “plan to build the pyramids” be perceived today?
    • What was their purpose?
    • What was the inevitable functional lifetime?
    • Resources needed (and from where)
    • Alternatives?
  • Any recent examples? Same scale?
needs for local imported resources
Needs for local / imported resources
  • Virtual water papers?
  • Stone age didn’t end because we ran out of stone
  • Iron age didn’t end because we ran out of iron
our first mega cities
Our first mega cities
  • Greek city-states of 100,000+
  • Now (only 4 in US):
    • 1. Tokyo, Japan - 34,100,000 (1 in 2000!)
2. Mexico City, Mexico - 22,650,000
3. Seoul, South Korea - 22,250,000
4. New York, United States - 21,850,000
5. Sao Paulo, Brazil - 20,200,000
6. Mumbai, India - 19,700,000
7. Dehli, India - 19,500,000
8. Los Angeles, United States - 17,950,000
9. Shanghai, China - 17,900,000
10. Jakarta, Indonesia - 17,150,000
effects of big cities
Effects of big cities
  • Waste management a bigger problem
  • Natural economy
  • Un-natural economy (retail, wealth by exchange)
  • Partly natural (resource extraction)