Ch. 4 - The Vulnerability of 21st Century cities Flashcards
What are the main vulnerabilites that cities face today?
Global Independence
Reliable Food Supplies
Peak Oil
Climate Change
Why is the relationship between Cities and Ecology so vital?
Global ecological change is accelerating
Cities are facing unprecedented challenges to their functional integrity, even survival!
Cities need to be looked at as ecological entities to ensure they are sustainable in relation to biophysical laws
What are some unprecedented aspects of the appearance of urban formations/cities?
Cities themselves are seen as an emergent phenomena
Shift from hunter-gatherer to agriculture-based, settlement-centered way of life.
Urbanization insulates city-dwellers from the negative consequences of their own ecological dysfunction. People are unable to see the impact they leave on the earth while they live in cities
Urbanization is still viewed as an ______ or ______ phenomenon
Economic or Demographic
What is a challenging aspect of the concept of Urbanization?
Living in urban areas does not reduce the dependence on productive ecosystems to support it.
What does Urbanization do to local, cyclical, ecological production systems?
It turns them into global, horizontally disintegrated, unidirectional, throughput systems
Known as the maximum rate of production or the maximum rate at which something can be processed
Throughput
What is an Ecological Footprint?
The area of land and water ecosystems required, on a continuous basis, to produce the resources that the population consumes and to assimilate its wastes (carbon dioxide), wherever on earth the relevant land/water is located.
Known as the capacity of a given biologically productive area to generate an on-going supply of renewable resources and to absorb its spillover wastes. Unsustainability occurs if the area’s ecological footprint exceeds _______
Biocapacity
Without Rural Sustainability, there can be no _______
Urban Sustainability
What can the government enforce for people in urban areas to improve urban sustainability
Promote the articulation of less material-intense lifestyles
Population reduction
Reshaping cities in the shape of natural ecosystems