This model incorporates several options in examining fisheries dynamics and fisheries employment. The two most important aspects are the choice between I)managing based on setting fixed quota versus setting fixed effort , and ii) using the 'scientific advice' for quota setting  versus allowing 'poli
This model incorporates several options in examining fisheries dynamics and fisheries employment. The two most important aspects are the choice between I)managing based on setting fixed quota versus setting fixed effort , and ii) using the 'scientific advice' for quota setting  versus allowing 'political influence' on quota setting (the assumption here is that you have good estimates of recruitment and stock assessments that form the basis of 'scientific advice' and then 'political influnce' that desires increased quota beyond the scientific advice).
This model incorporates several options in examining fisheries dynamics and fisheries employment. The two most important aspects are the choice between I)managing based on setting fixed quota versus setting fixed effort , and ii) using the 'scientific advice' for quota setting  versus allowing 'poli
This model incorporates several options in examining fisheries dynamics and fisheries employment. The two most important aspects are the choice between I)managing based on setting fixed quota versus setting fixed effort , and ii) using the 'scientific advice' for quota setting  versus allowing 'political influence' on quota setting (the assumption here is that you have good estimates of recruitment and stock assessments that form the basis of 'scientific advice' and then 'political influnce' that desires increased quota beyond the scientific advice).
Challenges in sustainability are multilevel. This diagram attempts to summarize levels of self reinforcing destructive dynamics, authors that deal with them, and point of leverage for change.  The base of the crisis is a mechanistic rather than ecological worldview. This mechanistic worldview is bas
Challenges in sustainability are multilevel.
This diagram attempts to summarize levels of self reinforcing destructive dynamics, authors that deal with them, and point of leverage for change.

The base of the crisis is a mechanistic rather than ecological worldview. This mechanistic worldview is based on outdated science that assumed the universe to be a large machine. In a machine there is an inside and an outside. The health of the inside is important for the machine, the outside not. In an ecological view everything is interconnected, there is no clear separation in the future of self and other. All parts influence the health of other parts. To retain health sensitivity and democracy are inherent. The sense of separation from other that keeps the mechanistic worldview dominant is duality. Being cut off from spiritual traditions due to a mechanistic view of science people need access to inter-spirituality to reconnect with the human traditions and tools around connectedness, inner discovery, and compassion. Many books on modern physics and biology deal with the system view implications. "The coming interspiritual age" deals with the need to connect spiritual traditions and science.

At the bottom for the dynamic is an individual a sense of disconnectedness leads to a dependency on spending and having rather than connecting. The connecting has become too painful and dealing with it unpopular in our culture. Joanna Macy deals with this in Active Hope. 

This affluenza and disconnection is worsened by a market that floods one with advertisements aimed at creating needs and a sense of dissatisfaction with that one has.

National economies are structured around maximising GDP which means maximising consumption and financial capital movement. This is at the cost of local economies. These same local economies are needed for balanced happiness as well as for sustainability.

Generally institutions focus on maximising consumption rather than sustaining life support systems. David Korten covers this well.

Power and wealth is confused in this worldview. In striving for wealth only power is striven for in the form of money and monopoly.

Those at the head of large banks and corporations tend to be there because they exemplify this approach. They have few scruples about enforcing this approach onto everyone through wars and disaster capitalism. Naomi Klein and David Estulin documented this.

Power has become so centralized that we need this understanding to be widespread and include many of those in power. Progress of all of these levels are needed to show them and all that another way is possible.
Thanks for taking the time to look at my model on how greenhouse effect impacts food security!    Here are a few notes:  -For more detailed descriptions of primitives, click on the information ("i") buttons.  -You may need to adjust the window size when viewing the graphs  -If you want to revisit my
Thanks for taking the time to look at my model on how greenhouse effect impacts food security!

Here are a few notes:
-For more detailed descriptions of primitives, click on the information ("i") buttons.
-You may need to adjust the window size when viewing the graphs
-If you want to revisit my graphs after viewing the story, click on the buttons at the bottom of the canvas.
-References and links to photos can be found at the end of the story
•Dry
Period Case

 –
25 years of historical dry period on record (1947-1973)-including drought of
record (1947-1956) 

 –Represents
the dry period case 

 –Future
dry cycle includes dry cycle of AMO and overlay of IPCC climate change
predictions 
•Dry Period Case
– 25 years of historical dry period on record (1947-1973)-including drought of record (1947-1956)
–Represents the dry period case
–Future dry cycle includes dry cycle of AMO and overlay of IPCC climate change predictions 
MEE460-04 Caleb Hemmelgarn  Sarah Hollis  Carson Kizer  Scott Koney  McKenzie Warman
MEE460-04
Caleb Hemmelgarn
Sarah Hollis
Carson Kizer
Scott Koney
McKenzie Warman

This model incorporates several options in examining fisheries dynamics and fisheries employment. The two most important aspects are the choice between I)managing based on setting fixed quota versus setting fixed effort , and ii) using the 'scientific advice' for quota setting  versus allowing 'poli
This model incorporates several options in examining fisheries dynamics and fisheries employment. The two most important aspects are the choice between I)managing based on setting fixed quota versus setting fixed effort , and ii) using the 'scientific advice' for quota setting  versus allowing 'political influence' on quota setting (the assumption here is that you have good estimates of recruitment and stock assessments that form the basis of 'scientific advice' and then 'political influnce' that desires increased quota beyond the scientific advice).
7 months ago
  The World Socio-Economics model is computer model to simulate the consequence of interactions between the earth and human systems based on the World3 model by the work of Club of Rome, The Limits to Growth[1].     The World3 model builds by system dynamics theory that is has an approach to underst
The World Socio-Economics model is computer model to simulate the consequence of interactions between the earth and human systems based on the World3 model by the work of Club of Rome, The Limits to Growth[1].

The World3 model builds by system dynamics theory that is has an approach to understanding the nonlinear behaviour of complex systems over time using stocks, flows, feedback loops, table functions and time delays.

The Limits to Growth concludes that, without substantial changes in resource consumption, "the most probable result will be a rather sudden and uncontrollable decline in both population and industrial capacity". 

Since the World3 model was originally created, it has had minor tweaks to get to the World3-91 model used in the book Beyond the Limits[2], later improved to get the World3-03 model used in the book Limits to Growth: the 30 year update[3].

References;
[1] Meadows, Donella H., Meadows, Dennis L., Randers, Jørgen., Behrens III, William W (1972). The Limits to Growth. 

[2] Meadows, Donella H., Dennis L. Meadows, Randers, Jørgen., (1992). Beyond the limits: global collapse or a sustainable future.

[3] Meadows, Dennis., Randers, Jørgen., (2004). The limits to growth: the 30-year update.
•Average
(Status Quo) Case

 –Last
30 years of historical EAA data  

 –Used
the past to predict the future 

 –Represents
the status quo case 

 –Includes
the dry portion  and wet portion of AMO
cycle
•Average (Status Quo) Case
–Last 30 years of historical EAA data
–Used the past to predict the future
–Represents the status quo case
–Includes the dry portion  and wet portion of AMO cycle
This simple model will attempt to demonstrate how modern civilization's groundwater practices are unsustainable and how they are affected by the changing climate.
This simple model will attempt to demonstrate how modern civilization's groundwater practices are unsustainable and how they are affected by the changing climate.
This simple model will attempt to demonstrate how modern civilization's groundwater practices are unsustainable and how they are affected by the changing climate.
This simple model will attempt to demonstrate how modern civilization's groundwater practices are unsustainable and how they are affected by the changing climate.
 Population growth and increased resource usage per person (in terms of energy, land use, dwellings, public services, use of products, food products, etc.) are at the core of the rapid changes in the Earth's surface layers (land use, soil, hydrosphere, atmosphere), which are unsustainable. To what e
Population growth and increased resource usage per person (in terms of energy, land use, dwellings, public services, use of products, food products, etc.) are at the core of the rapid changes in the Earth's surface layers (land use, soil, hydrosphere, atmosphere), which are unsustainable. To what extent is the way population growths and increased resource usage is sanctioned consistent with the ethical principles our society is based on and what changes in systems that provide sanctions for population growth and resource usage would increase the consistency between the normative and descriptive ethics in our society? The case study will consider what population growth and increase in resource usage is expected for the Chesapeake Bay area and identify the potential hazards this growth might create for the Bay. The study will discuss the fragilities of the human and non-human environment to growth-related hazards, and will develop foresight in terms of possible futures. The study will consider to what extent these futures would be consistent with the current ethics and develop interventions that would reduce any discrepancy between the descriptive and normative ethics.