| 1. |
- Belyazid, Salim, et al.
(author)
-
A Sustainability Assessment of the Urban Rehabilitation Project of the Medina of Fez, Morocco
- 2003
-
In: Proceedings of the 21st International Conference of the System Dynamics Society. - 9780967291482
-
Conference paper (peer-reviewed)abstract
- The old city of Fez, Morocco, classified as Heritage of Humankind by the UNESCO, is subject to an integrated rehabilitation plan running over 15 years. The plan aims at restoring and preserving the economy, cultural value, and social heritage of the old city. The study follows a system dynamics approach to describe and analyze the rehabilitation plan in order to identify the strengths and defects of the plan. This study shows that while the plan is giving relatively satisfying results over the short and medium terms, it is unlikely to attain long term sustainability.
|
|
| 2. |
- Camphuis, Kevin
(creator_code:cre_t)
-
PROTEIN DIVERSIFICATION: An EIT FOOD White Paper
- 2022
-
Reports (other academic/artistic)abstract
- Food systems transformation is critical for meeting our climate goals, and for ensuring individual health and food security by boosting resilience to external shocks. We face the challenge of producing enough nutritious food for our growing global population, whilst reducing our environmental impact at a time of increased competition and scarcity of resources. Protein diversification can play an important role in enhancing the resilience of food systems, in support of the EU’s main policy goals.
|
|
| 3. |
- Hallström, Elinor, et al.
(author)
-
How much meat can we eat to sustain a healthy life and planet? The case of Swedish meat consumption
- 2015
-
In: International conference on Life Cycle Assessment as reference methodology for assessing supply chains and supporting global sustainability challenges : LCA FOR “FEEDING THE PLANET AND ENERGY FOR LIFE” - LCA FOR “FEEDING THE PLANET AND ENERGY FOR LIFE”. - 9788882863210 ; , s. 29-35
-
Conference paper (peer-reviewed)abstract
- Sustainability of Swedish meat consumption is assessed from the perspectives of nutrition, health, climate and land use. Our results suggest that more sustainable food systems can be achieved via changes in Swedish meat consumption and that our multidimensional approach can be useful in identifying such changes.
|
|
| 4. |
- Haraldsson, Hördur, et al.
(author)
-
The coming water shortage in the Jordan River Basin - Finding objectivity in a subjective problem
- 2002
-
In: Proceeding of the 20th International Conference of the System Dynamics Society. ; , s. 78-78
-
Conference paper (peer-reviewed)abstract
- Water distribution and availability in the Jordan region were studied. Self-sufficiency in water availability within the region is determined by the minimum amount of water used per person that is renewable. The objectives of the study were to identify the causes of water shortages and alternative use of water to prolong future supplies. According to our analysis, Israel and Jordan will overutilise their water source by a factor of 2 and Palestine by a factor of 1, by the year 2030. Water recycling has a potential in all the countries. The agricultural sector makes up the bulk of the water use (73-85%). Different water-saving techniques and alternative crop production can drastically reduce water use. Diverting away from agriculture and alternatively developing the industry sector would alleviate the immediate water shortages but will make the region dependent on the global grain market.
|
|
| 5. |
- Hirschnitz-Garbers, Martin, et al.
(author)
-
Potentiale und Kernergebnisse der Simulationen von Ressourcen-schonung(spolitik) : Endbericht des Projekts „Modelle, Potentiale und Langfristszenarien für Ressourceneffizienz“ (Sim-Ress)
- 2018
-
Reports (other academic/artistic)abstract
- Human use of natural resources poses a great challenge to social-ecological and socio-technical sys- tems alike: supply risks, pollutant and greenhouse gas emissions, waste generation on the one hand, but also issues of global justice and societal well-being on the other hand. In order to test potential im- pacts of developments and strategies relevant to resource policy, the SimRess project first identified trends that positively or negatively affect resource use in Germany and globally in the future. These trends were then incorporated into resource relevant scenarios (without as well as with assumptions of further resource and climate policy measures), which served as frames for simulating potential im- pacts via the econometric model GINFORS3 and the system dynamic model WORLD6 as well as through a soft-link of both models.The simulation results show on the one hand that continuing existing resource policy efforts on na- tional and international level will remain an important contribution to increasing resource productiv- ity and economic development. On the other hand, however, it was found that achieving targets for per-capita resource use, as called for by national and international sustainability scholars, needs a much greater level of ambition in national and international resource policy. This demands widening resource policy’s focus from increasing productivity in production structures to also tackling changes in consumption and investment patterns. Correspondingly, it seems important to expand the toolkit of resource policy instruments to much more integrate both economic and regulatory measures.
|
|
| 6. |
- Hirschnitz-Garbers, Martin, et al.
(author)
-
System analysis for environmental policy – System thinking through system dynamic modelling and policy mixing as used in the SimRess project
- 2018
-
Reports (other academic/artistic)abstract
- Diverse and complex interactions as well as multi-actor systems characterise resource use and re- source policy. This makes system analysis a relevant tool to orient resource policy towards the long term. Analysing such complex systems requires systemic thinking, consideration of causal loops as well as time-lags and delays in system responses.In the SimRess project, system analysis encompassed participatory conceptual system modelling via involving external stakholders into identifying system boundaries and elements via causal loop dia- grams (CLDs). The CLDs were than reflected in the parametrisation of simulation models and the de- velopment of policy mixes.Only a limited number of stakeholders participated in two of the five workshops needed for a fully- fledged group modelling process. Therefore, the project team finalised internally the conceptual sys- tem model. Although this reduced ownership and transparency of the system model, the two work- shops provided relevant system knowledge for further modelling work and policy mix development.During policy mix development in SimRess, we needed to deviate from the theoretical concept of pol- icy mixing based on available project capacities and stakeholder decisions. On the one hand, under- standing and assessing cumulative effects of policy mixes challenged conceptual policy mix develop- ment and simulation capacities. On the other hand, stakeholder decisions impacted on the depth at which system analysis via simulation models could be undertaken.
|
|
| 7. |
- Kalen, Christer, et al.
(author)
-
Future Demand and Supply of Food in China - A modeling attempt
- 2002
-
In: Proceeding of the 20th International Conference of the System Dynamics Society. ; , s. 85-85
-
Conference paper (peer-reviewed)abstract
- This paper focuses on future scenarios of demand and supply of grain in China. Economic development has been growing at a steady pace for decades and there are no signs of a decline in the near future. Projections of population trends show that the population will continue to expand until 2050, when a levelling- off is predicted. The growth of both population and economy drives industrialisation and urbanisation where area for settlement and infrastructure is demanded. Agricultural land is converted into urban area with high water consumption and pollution problems. People with a higher income diversify the diet, a diet that needs a larger area for production. The fundamental basis for self-subsistence in food production - agricultural land and clean water - is diminishing rapidly and may soon necessitate an extensive grain import. This study concludes that even if conservation measures are carried out China may face an extensive need for import of grain products.
|
|
| 8. |
- Kawahara, Takahiro, et al.
(author)
-
Systems Analysis of the Impacts of the Great East Japan Earthquake and Tsunami on Energy Supply System in Kamaishi-City
- 2013
-
In: [Host publication title missing]. - 9781935056119
-
Conference paper (peer-reviewed)abstract
- The Great East Japan earthquake and tsunami hit coastal cities in Iwate, Miyagi and Fukushima Prefectures of Tohoku Region devastating the energy supply system in the region. Electricity and fuel shortages caused severe problems in the city of Kamaishi varying from lack of mobility, communication, heating to reduced health conditions. This paper, aims to analyze the impacts of the earthquake and the tsunami on local energy supply system in Kamaishi City by; i) clarifying what energy services were in need when there was a shortage in energy supply right after the disasters by performing semi-structured interviews; and ii) identifying and analyzing causes and effects of the energy supply shortage at local level when the disasters occurred by applying systems thinking approach and causal loop diagramming methodology. Suggested alternative potential measures in tackling energy supply shortages and in preparing future disaster risk reduction plans are expected to be use of policy makers
|
|
| 9. |
- Kifle, Dejene, et al.
(author)
-
A Simple Assessment of the Global Long Term Supply of the Rare Earth Elements by Using a System Dynamics Model
- 2013
-
In: Environment and Natural Resources Research. - 1927-0496. ; 3:1, s. 77-91
-
Journal article (peer-reviewed)abstract
- Our simple dynamic-simulation model shows that the global supply of Rare Earth Elements is limited for meeting the future demands of new technologies. Unless improved recycling policies are adapted strategic elements may become scarce in the next half-century as a result of a “peak Rare Earths Elements” phenomenon. The model results also show that the market alone cannot solve the resource-inefficiency problem because the market’s instant and opportunistic nature impedes the long-term planning that is needed. Market mechanisms will only function if governments discourage wasteful practices by requiring recycling and long-term planning as conditions for the industry before the resource becomes too scarce. We conclude that technologies and industrial capacity for effectively recycling Rare Earth Elements will be in demand, and that effective recycling policy should be put in place soon to make the supply sustainable over the long-term
|
|
| 10. |
- Koca, Deniz, et al.
(author)
-
A stakeholder participated system science based sustainable development indicator framework
- 2012
-
In: [Host publication title missing]. - 9781627485784
-
Conference paper (peer-reviewed)abstract
- The growing interest in sustainable development indicators (SDI) has resulted in the development and application of various SDI frameworks in the past two decades. Identification and selection of “right” indicators with such frameworks are essential, in the sense that, it is the information from these indicators that will help policy and decision makers to better understand the efficiency, effectiveness and impacts of existing sustainable development policies, as well as to develop and apply new ones. To develop the “right” indicators with the existing SDI frameworks, however, is challenging due to following three issues: 1) The majority of indicators developed by existing SDI frameworks provide information only covering individual issues, sectors or topics from disconnected three “pillars” of sustainable development – namely; environment, economy and society. These indicators are pillar-specific and do not provide information on interlinkages between different pillars. The capital/domain-based framework, for instance, is centred on the economic and environmental pillars, where as causal frameworks (Pressure-State-Respond and its variations), are limited mostly to the environmental pillar of sustainable development. Moreover, most indicators developed by the existing SDI frameworks (except for, partly the casual frameworks) lack the explicit interlinkages and cause effect relationships between each other even if they cover the same pillar of sustainable development and are sorted out under same issue, sector or topic; 2) Cases where stakeholder participation in developing indicators with existing SDI frameworks are still limited and none of the frameworks considers a design for stakeholder participation process in its structure; and 3) The existing SDI frameworks do not consider the representation of the dynamic relationships between indicators. Indicators developed by these frameworks are static in nature and lack interactivity. They provide information about the system only considering the current situation, not changing conditions in time. That is why these indicators are intended to be measured regularly and frequently to gather the information for monitoring the performed progress in the past and also assess the current situation. To address the above three issues, a stakeholder participated systems science based SDI framework is proposed in this study. The proposed framework is, in fact, a generic group-modelling process and can incorporate all other types of existing SDI frameworks (i.e. theme based, sector based, causal base, goal base etc.). The proposed SDI framework considers: 1) broad stakeholder participation for enabling discussions on trans/inter/cross disciplinary issues and ensuring exchange of knowledge for a better understanding of complex sustainability issues; 2) systems thinking, conceptual modelling and systems analysis for introducing causal loop diagramming methodology as a common communication tool among stakeholders. Conceptual modelling over a series of group workshops and systems analysis will help to identify interlinkages (cause effect relations and feedback loops) for a better understanding of the complex human, nature and the support/build systems; and 3) system dynamics modelling and integrated scenario analysis for developing numerical models to capture the dynamic complexity, and to test and experiment alternative potential policy options under different future scenarios. Such models allow the user to see dynamic relationships between indicators as well as to analyse the relevance and sensitivity of indicators. Having the methodologies to deal with the above-mentioned issues in its structure, we believe, the proposed framework not only improves the identification, selection and monitoring processes of indicators, but it also serves as a stakeholder capacity enhancement tool for analysing dynamic complex sustainability issues.
|
|
