Title: Keith G. Tidball
1Keith G. Tidball Cornell University Green
Cities CRP 384/584 Nature in The City
2- The battle to save the worlds remaining healthy
ecosystems will be won or lost not in the
tropical forests or coral reefs that are
threatened but on the streets of the most
unnatural landscapes on the planet. - Christopher Flavin, president of the
Worldwatch Institute
3 According to Webster-SAVE is a
VERB saved , saving , saves To rescue from
harm, danger, or loss. To set free from the
consequences of sin redeem. To keep in a safe
condition safeguard. To prevent the waste or
loss of conserve. To set aside for future use
store. To treat with care by avoiding fatigue,
wear, or damage spare save one's eyesight.
4Saving Mother Earth
5And God said, Let us make man in our image, after
our likeness and let them have dominion over the
fish of the sea, and over the fowl of the air,
and over the cattle, and over all the earth, and
over every creeping thing that creepeth upon the
earth. Genesis 126 KJV
http//bibletools.org/index.cfm/fuseaction/Topical
.show/RTD/cgg/ID/2163/Dominion-over-Animals.htm
6Paradigm Problems
- Both the dominion paradigm and the save earth
paradigm suffer from anthropocentric bias. - Both fail to see systems and ecological process
as operating before, during, and perhaps long
after the appearance of humans.
7Cartesian Dualism
- These Paradigm Problems reflect the 17th
Century philosophy of Cartesian dualism - the
dichotomous separation of humans from nature. - Urban NatureOXYMORON?
8Systems Thinking
- System Dynamics entails making three fundamental
shifts of mind relative to traditional ways of
thinking. - From linear, laundry list thinking to a circular,
closed-loop view of causality. -
- From an external to an internal focus on
performance how we, not others, are responsible
for results. -
- A focus on an operational view of how things
work in contrast to analysis methods based on
statistical correlation of past trends. -
RJ Walkers adaptation of Barry Richmond. An
Introduction to Systems Thinking, iThink 4.0
documentation, High Performance Systems Inc.,
Page I-12.
9Systems Thinking
- Systems dynamics thinking gets a lot of its
power from a 'feedback' perspective -- the
realization that tough dynamic problems arise in
situations with lots of pressures and perceptions
that interact to form loops of circular
causality, rather than simple one-way causal
chains.
George Richardson. System Dynamics in an
Elevator.http//www.stewardshipmodeling.com/Syste
m20Dynamics20in20the20Elevator.htm
10Remember This?
In Western culture, the dichotomy of good and
evil is often taken as a paradigm for other
dichotomies. In Hegelian dialectics, dichotomies
are linked to progress. In Chinese philosophy
dichotomies are linked to cyclical processes
rather than progress1.
- http//en.wikipedia.org/wiki/Yin_and_yang
- For a full discussion of the taiji or Yin Yang
symbol, see http//home.att.net/numericana/answer
/symbol.htmtaiji
11Some paradigmatic dichotomies may be
self-defeating circular processes, or may not
lead to progress without an event to move the
flow of energy within the process.
12(No Transcript)
13Paradigmatic Dichotomy Example 1 For
Environmental Security, Natural Resources are
the Source of Conflict vs. Natural Resources
are a Source of Solutions to Conflict
The paradox While in some cases conflict has
and does arise over competition for natural
resources, natural resources can be a path to
Environmental Peacemaking1.
14Paradigmatic Dichotomy Example 2 For
Sustainability, Cities are Good vs. Cities
are Bad
The paradox While cities are centers of
consumption, sources of pollution, and often
concentrate crime and conflict, they are also
centers of human and economic capital, sources of
innovation and organization, and repositories of
diversity.
15Can these two paradigmatic dichotomies be
organized conceptually to makes some sense of the
circular nature of these two important paradoxes?
16(No Transcript)
17Resilience theory provides explanations for the
source and role of transforming change in
adaptive systems.
18SES- Socio Ecological System
19Urban Facts
- In 2008 more than half the people on the planet
will live in cities. - As early as 2030, four out of five of the worlds
urban residents will live in what we call the
developing world - Many experts predict that cities will be where
future conflict will be most prevalent - Cities are particularly vulnerable to natural
disasters
20Cities and Mega Cities Today
- 19 mega-cities with 10 million or more
- 22 cities with 5-10 million
- 370 cities with 1-5 million
- 433 cities with 0.5-1 million
21Cities and Nature
- A large percentage of Earth's biodiversity exists
in urban or urbanizing areas. - Cities are embedded in the natural environment of
whichever place on Earth where they develop.
22Connecting
- Connecting city dwellers with their local nature
and watersheds is critical not only for building
support for the conservation of faraway places,
but also for the ecological restoration and
stewardship of biodiversity at home.
23Conservation
- Conservation of local urban biodiversity is as
essential to global ecosystem conservation,
sustainability, and human survival on the planet
as is conservation of the Amazon rainforest or
the Alaskan National Wildlife Refuge.
24Environmental Justice
- Many urban people cannot afford to go out of town
to experience nature and/or they have grown up
without the benefit of experiencing wild nature.
25(No Transcript)
26Nature...
- Urban areas are the diverse, complex, intensely
developed and decisive milieu in which we humans
are confronted with the global challenge of how
to interact more harmoniously, locally, with the
rest of the natural world.