OPTIONS FOR ASSESSING THE SUITABILITY OF URBAN ENVIRONMENTAL ACUPUNCTURE

Author(s):  
Barbara Vojvodíková ◽  
Jiří Kupka ◽  
Adéla Brázdová ◽  
Radim Fojtík ◽  
Iva Tichá

To increase their resilience to climate change, cities are looking to apply elements of urban environmental acupuncture. The essence of such measures is many smaller sites that is functioning as mitigation measures. Many of these small places then create a large overall effect. The advantage of these small-scale measures is that they can be in densely populated areas The assessment tool described in this paper is designed for city representatives and is an aid to assess the suitability of applying a particular measure based on the parameters described. The evaluation itself then helps to decide whether the solution is suitable for a particular site or whether any of the parameters need to be adjusted to make it suitable, or whether it would be appropriate to change the proposed solution. The intention of the evaluation is not to assess the technical solution but relies primarily on the location, long-term (especially financial) sustainability and acceptance by the citizens of the city. The paper presents an example of the application of the evaluation to four sites in city Liptovský Mikuláš, describing the results and identifying parameters that can be improved to ensure the urban environmental acupuncture is accepted by citizens and thus future-proofed.

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1313
Author(s):  
George Akoko ◽  
Tu Hoang Le ◽  
Takashi Gomi ◽  
Tasuku Kato

The soil and water assessment tool (SWAT) is a well-known hydrological modeling tool that has been applied in various hydrologic and environmental simulations. A total of 206 studies over a 15-year period (2005–2019) were identified from various peer-reviewed scientific journals listed on the SWAT website database, which is supported by the Centre for Agricultural and Rural Development (CARD). These studies were categorized into five areas, namely applications considering: water resources and streamflow, erosion and sedimentation, land-use management and agricultural-related contexts, climate-change contexts, and model parameterization and dataset inputs. Water resources studies were applied to understand hydrological processes and responses in various river basins. Land-use and agriculture-related context studies mainly analyzed impacts and mitigation measures on the environment and provided insights into better environmental management. Erosion and sedimentation studies using the SWAT model were done to quantify sediment yield and evaluate soil conservation measures. Climate-change context studies mainly demonstrated streamflow sensitivity to weather changes. The model parameterization studies highlighted parameter selection in streamflow analysis, model improvements, and basin scale calibrations. Dataset inputs mainly compared simulations with rain-gauge and global rainfall data sources. The challenges and advantages of the SWAT model’s applications, which range from data availability and prediction uncertainties to the model’s capability in various applications, are highlighted. Discussions on considerations for future simulations such as data sharing, and potential for better future analysis are also highlighted. Increased efforts in local data availability and a multidimensional approach in future simulations are recommended.


2021 ◽  
Author(s):  
Sophie de Bruin ◽  
Jannis Hoch ◽  
Nina von Uexkull ◽  
Halvard Buhaug ◽  
Nico Wanders

<p>The socioeconomic impacts of changes in climate-related and hydrology-related factors are increasingly acknowledged to affect the on-set of violent conflict. Full consensus upon the general mechanisms linking these factors with conflict is, however, still limited. The absence of full understanding of the non-linearities between all components and the lack of sufficient data make it therefore hard to address violent conflict risk on the long-term. </p><p>Although it is neither desirable nor feasible to make exact predictions, projections are a viable means to provide insights into potential future conflict risks and uncertainties thereof. Hence, making different projections is a legitimate way to deal with and understand these uncertainties, since the construction of diverse scenarios delivers insights into possible realizations of the future.  </p><p>Through machine learning techniques, we (re)assess the major drivers of conflict for the current situation in Africa, which are then applied to project the regions-at-risk following different scenarios. The model shows to accurately reproduce observed historic patterns leading to a high ROC score of 0.91. We show that socio-economic factors are most dominant when projecting conflicts over the African continent. The projections show that there is an overall reduction in conflict risk as a result of increased economic welfare that offsets the adverse impacts of climate change and hydrologic variables. It must be noted, however, that these projections are based on current relations. In case the relations of drivers and conflict change in the future, the resulting regions-at-risk may change too.   By identifying the most prominent drivers, conflict risk mitigation measures can be tuned more accurately to reduce the direct and indirect consequences of climate change on the population in Africa. As new and improved data becomes available, the model can be updated for more robust projections of conflict risk in Africa under climate change.</p>


2018 ◽  
pp. 1575-1592
Author(s):  
Seda H. Bostancı

Municipalities have variety of tools for improving environmental sustainability. The effects of climate change increase the renewable projects developed by municipalities and public private sectors. Turkish municipalities practiced the early steps of sustainability projects, some of which were small-scale projects. In addition, Turkish municipalities have gained experience in LA 21 Process since the late 1990s. Some of the city models for sustainability, such as CittaSlow and healthy city projects developed by Turkish Municipalities. The work in this chapter represents research about variety of issues for environment and sustainability in Turkish Municipalities. Visions, strategies and projects of these municipalities have been analysed to attain this goal. A literature review and SWOT analysis were used for the methodology to determine the Turkish municipalities' potential for sustainability.


2018 ◽  
Author(s):  
Pedro D. Barrera Crespo ◽  
Erik Mosselman ◽  
Alessio Giardino ◽  
Anke Becker ◽  
Willem Ottevanger ◽  
...  

Abstract. The Equatorial Daule and Babahoyo rivers meet and combine into the tidal Guayas River, which flows into the largest estuary on the Pacific coast of South America. The city of Guayaquil, located along the Guayas, is the main port of Ecuador but, at the same time, the planet's fourth most vulnerable city to future flooding due to climate change. Fluvial sedimentation, which has increased in the recent years, is seen as one of the factors contributing to the risk of flooding. The planning and design of effective mitigation measures requires a good understanding of the causes which have led to the current hazards. In this study, the process-based Delft3D FM model was used in order to explain the dominant processes in the river and the effects that past interventions along the river and its estuary have had in the overall sediment budget. Additionally, a simulation including sea level rise was used in order to understand the possible future impact of climate change on the sediment budget. Results indicate that the increased import of marine sediment is the result of the recent increase in tidal asymmetry due to land reclamation and a decrease of episodic flushing by river floods due to upstream dam construction. This is in contrast with the local perception of the problem, which ascribes sedimentation to deforestation in the upper catchment. Only the deposition of silt and clay in connected stagnant water bodies could perhaps be ascribed to upstream deforestation.


Hydrology ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 3
Author(s):  
Nega Chalie Emiru ◽  
John Walker Recha ◽  
Julian R. Thompson ◽  
Abrham Belay ◽  
Ermias Aynekulu ◽  
...  

This study investigated the impacts of climate change on the hydrology of the Upper Awash Basin, Ethiopia. A soil and water assessment tool (SWAT) model was calibrated and validated against observed streamflow using SWAT CUP. The Mann–Kendall trend test (MK) was used to assess climate trends. Meteorological drought (SPEI) and hydrological drought (SDI) were also investigated. Based on the ensemble mean of five global climate models (GCMs), projected increases in mean annual maximum temperature over the period 2015–2100 (compared with a 1983–2014 baseline) range from 1.16 to 1.73 °C, while increases in minimum temperature range between 0.79 and 2.53 °C. Increases in mean annual precipitation range from 1.8% at Addis Ababa to 45.5% over the Hombole area. High streamflow (Q5) declines at all stations except Ginchi. Low flows (Q90) also decline with Q90 equaling 0 m3s−1 (i.e., 100% reduction) at some gauging stations (Akaki and Hombole) for individual GCMs. The SPEI confirmed a significant drought trend in the past, while the frequency and severity of drought will increase in the future. The basin experienced conditions that varied from modest dry periods to a very severe hydrological drought between 1986 and 2005. The projected SDI ranges from modestly dry to modestly wet conditions. Climate change in the basin would enhance seasonal variations in hydrological conditions. Both precipitation and streamflow will decline in the wet seasons and increase in the dry seasons. These changes are likely to have an impact on agricultural activities and other human demands for water resources throughout the basin and will require the implementation of appropriate mitigation measures.


Author(s):  
Ngo Hoai Son ◽  
Nguyen Van Hoa

As severely affected by climate change, Ho Chi Minh City needs to focus on developing human resource for its climate change response policy. This is because human resource is a key factor fora successful response. The paper uses secondary data from the Department of Natural Resources and Environment of Ho Chi Minh City to analyze the current situation of human resources for climate change of the city, which is devided into 02 main groups as core and complementary groups. The data show that, although the core group is high qualified, it lacks staffs with deep expertise in policy and climate change. For the complementary group, the city has not focused on training in both short and long term. In order to improve the effectiveness of climate change response in the coming years, Ho Chi Minh City needs to implement at least 03 solutions: (01) recruiting additional staffs with expertise in policies and climate change; (02) promote training for the core personnels; and (03) statistics, build and implement in short and long-term training plans for complementary staffs.


2021 ◽  
pp. 2150005
Author(s):  
Marisa Fuchs ◽  
Tanja Schnittfinke ◽  
Kristina Ohlmeyer ◽  
Dietwald Gruehn ◽  
Stefan Greiving

The effects of climate change and associated extreme weather events such as heat, storms and heavy rainfall lead to considerable damage to property and personal injury worldwide. To counteract the causes and consequences of climate change, many states, regions and cities worldwide declared the status of climate emergency in 2019. As a result, scientists and urban planners intensified their efforts to develop appropriate mechanisms and measures to mitigate and adapt to climate change and its consequences. This paper presents an informal systematic and user-driven governance instrument, which examines the ecological, social and economic effects of urban interventions – the ‘Sustainability Check’. As a target-based assessment tool, it provides decision-makers with information about the extent to which a planned intervention corresponds with future-oriented urban development. The check results from the research project ZUKUR (‘Future of the Urban Region Ruhr’), in which researchers and practitioners from the City of Bottrop (Germany) worked together in a real-world laboratory. The Sustainability Check is novel because it combines elements of an impact assessment tailored to user needs and links sustainable urban development goals with resilient and environmentally just urban development at the local level. Based on the first application, we conclude that the Sustainability Check significantly contributes to developing a future-oriented city. Adapted to the local and context-specific needs of a city, it offers systematic consideration of the requirements of sustainable, resilient and environmentally just urban development in an efficient manner and at the early-stage.


2021 ◽  
Author(s):  
Blas Lajarín ◽  
Nieves Peña ◽  
Jorge Paz ◽  
Edward P. Morris ◽  
Greta C. Vega ◽  
...  

<p>The Thermal Assessment Tool has been developed within the framework of a Copernicus Climate Change Service (C3S) contract, titled Climate Change Dashboards for Decision Makers, to provide an interactive and informative dashboard to allow users to visualize the frequency and severity of risk events related to cold snaps and heatwaves. The tool is based on historical, seasonal forecast and long-term projections datasets, available through C3S Climate Data Store (CDS). It reduces the need for repetitive complex climate data analysis, thereby saving time and effort in the decision-making process.</p><p>Climate change has already impacted ecosystems and humans, and it is foreseeing that will lead to an increase in the number and intensity of extreme weather events, including heatwaves and cold snaps. These may bring temperatures that are significantly warmer or colder than average that may cause impacts such as thermal discomfort, lack of productivity, more energy consumption and/or health problems. To reduce or at least mitigate these impacts added-value information regarding the risks of extreme temperatures is needed to make proper decisions to prepare, protect and prevent the city and citizens.</p><p>For this purpose, the Thermal Assessment Tool provides a customized dashboard that allows users to visualize heatwaves, cold snaps and thermal comfort based on long-term projections and seasonal forecasts. The tool also presents an interactive map and a time series visualization identifying the magnitude of these three variables. This reduces the need for repetitive complex climate data analysis, thereby saving time and effort in the decision-making processes. Information on the frequency and severity of future extreme temperature events can also assist with planning.</p><p>The tool showcases how to analyze, process and simplify large volumes of data through different maps and plots that make it easier to understand climate indicators (about the past, present or future). Local governments and other decision-makers, as well as actors in housing development and management, urban planning, and insurance can refer to the tool to complement their usual information systems with additional quality-assured insights that they can act on.</p><p>Acknowledgments: We would like to thank the C3S for funding this project and the participants in the various workshops mentioned below: Ayuntamiento de Bilbao, Ihobe y la Oficina Española de Cambio Climático.</p>


Author(s):  
Alice Nyawira Karuri

AbstractThe adverse effect of climate change on agriculture is well-documented and is a cause of concern for governments globally. In addition to concerns over food crop production, the economies of numerous developing countries rely heavily on cash crops. The coffee and tea sectors are key in Kenya’s economy, contributing significantly to the gross domestic product, foreign exchange, and the direct or indirect employment of millions. Farmers engaged in the production of coffee and tea are predominantly small-scale farmers, with the majority farming on less than five acres. Climate change poses a threat to the production of these two crops and by extension to the economy of Kenya and the livelihood of farmers and those employed in these sectors. This study identifies the challenges posed by climate change in the tea and coffee sectors, the adaptation and mitigation measures identified, and the scope of their implementation. The production, processing, and marketing of tea and coffee in Kenya differs widely in terms of the institutions and institutional arrangements in the two sectors. This study will therefore analyze the role played by institutions in both sectors and how this affects climate change adaptation and mitigation measures by small-scale farmers.


Author(s):  
Seda H. Bostancı

Municipalities have variety of tools for improving environmental sustainability. The effects of climate change increase the renewable projects developed by municipalities and public private sectors. Turkish municipalities practiced the early steps of sustainability projects, some of which were small-scale projects. In addition, Turkish municipalities have gained experience in LA 21 Process since the late 1990s. Some of the city models for sustainability, such as CittaSlow and healthy city projects developed by Turkish Municipalities. The work in this chapter represents research about variety of issues for environment and sustainability in Turkish Municipalities. Visions, strategies and projects of these municipalities have been analysed to attain this goal. A literature review and SWOT analysis were used for the methodology to determine the Turkish municipalities' potential for sustainability.


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