| 1. |
- Bai, Xuemei, et al.
(författare)
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Defining and advancing a systems approach for sustainable cities
- 2016
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Ingår i: Current Opinion in Environmental Sustainability. - : Elsevier BV. - 1877-3435 .- 1877-3443. ; 23, s. 69-78
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Forskningsöversikt (refereegranskat)abstract
- The sustainable development of cities is increasingly recognized as crucial to meeting collectively agreed sustainability goals at local, regional and global scales, and more broadly to securing human well-being worldwide. The UN Sustainable Development Goals (SDGs) include a goal on cities (Goal 11), with most other goals and targets have urban applications and multi scalar implications for their implementation. Further, the interdependencies - including synergies and trade-offs among the various SDGs are greater in cities, presenting both challenges and opportunities. A systems approach is urgently needed in urban research and policy analysis, but such an approach rarely features in current analysis or urban decision-making for various reasons. This paper explores four questions: why a systems approach is necessary, what defines such an approach, why has this rarely been adopted in practice, and what can be done to promote its use. We argue that a systems approach can reveal unrecognized opportunities to maximize co-benefits and synergies, guide management of inevitable trade-offs, and therefore inform prioritisation and successful solutions. We present four key issues for the effective implementation of the SDGs and the New Urban Agenda, which emerged from UN Habitat III Conference, namely: (a) a radical redesign of the multilateral institutional setup on urban issues; (b) promoting regenerative culture, behaviour, and design; (c) exploring ways to finance a systems approach; and (d) a new and enhanced role for science in sustainable development. The latter issue could be addressed through Future Earth's Urban Knowledge-Action Network, which aims at co-designing and co-producing cutting-edge and actionable knowledge for sustainable cities bringing together researchers and urban decision-makers and practitioners.
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| 2. |
- Elmqvist, Thomas, et al.
(författare)
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Benefits of restoring ecosystem services in urban areas
- 2015
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Ingår i: Current Opinion in Environmental Sustainability. - : Elsevier BV. - 1877-3435 .- 1877-3443. ; 14, s. 101-108
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Tidskriftsartikel (refereegranskat)abstract
- Cities are a key nexus of the relationship between people and nature and are huge centers of demand for ecosystem services and also generate extremely large environmental impacts. Current projections of rapid expansion of urban areas present fundamental challenges and also opportunities to design more livable, healthy and resilient cities (e.g. adaptation to climate change effects). We present the results of an analysis of benefits of ecosystem services in urban areas. Empirical analyses included estimates of monetary benefits from urban ecosystem services based on data from 25 urban areas in the USA, Canada, and China. Our results show that investing in ecological infrastructure in cities, and the ecological restoration and rehabilitation of ecosystems such as rivers, lakes, and woodlands occurring in urban areas, may not only be ecologically and socially desirable, but also quite often, economically advantageous, even based on the most traditional economic approaches.
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| 3. |
- Elmqvist, Thomas
(författare)
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Sustainability and resilience differ
- 2017
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 546:7658, s. 352-352
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Elmqvist, Thomas, et al.
(författare)
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Sustainability and resilience for transformation in the urban century
- 2019
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Ingår i: Nature Sustainability. - : Springer Science and Business Media LLC. - 2398-9629. ; 2:4, s. 267-273
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Forskningsöversikt (refereegranskat)abstract
- We have entered the urban century and addressing a broad suite of sustainability challenges in urban areas is increasingly key for our chances to transform the entire planet towards sustainability. For example, cities are responsible for 70% of global greenhouse gas emissions and, at the same time, 90% of urban areas are situated on coastlines, making the majority of the world's population increasingly vulnerable to climate change. While urbanization accelerates, meeting the challenges will require unprecedented transformative solutions for sustainability with a careful consideration of resilience in their implementation. However, global and local policy processes often use vague or narrow definitions of the concepts of 'urban sustainability' and 'urban resilience', leading to deep confusion, particularly in instances when the two are used interchangeably. Confusion and vagueness slow down needed transformation processes, since resilience can be undesirable and many sustainability goals contrast, or even challenge efforts to improve resilience. Here, we propose a new framework that resolves current contradictions and tensions; a framework that we believe will significantly help urban policy and implementation processes in addressing new challenges and contributing to global sustainability in the urban century.
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| 5. |
- Elmqvist, Thomas, et al.
(författare)
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Urban tinkering
- 2018
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Ingår i: Sustainability Science. - : Springer Science and Business Media LLC. - 1862-4065 .- 1862-4057. ; 13:6, s. 1549-1564
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Tidskriftsartikel (refereegranskat)abstract
- Cities are currently experiencing serious, multifaceted impacts from global environmental change, especially climate change, and the degree to which they will need to cope with and adapt to such challenges will continue to increase. A complex systems approach inspired by evolutionary theory can inform strategies for policies and interventions to deal with growing urban vulnerabilities. Such an approach would guide the design of new (and redesign of existing) urban structures, while promoting innovative integration of grey, green and blue infrastructure in service of environmental and health objectives. Moreover, it would contribute to more flexible, effective policies for urban management and the use of urban space. Four decades ago, in a seminal paper in Science, the French evolutionary biologist and philosopher Francois Jacob noted that evolution differs significantly in its characteristic modes of action from processes that are designed and engineered de novo (Jacob in Science 196(4295):1161-1166, 1977). He labeled the evolutionary process tinkering, recognizing its foundation in the modification and molding of existing traits and forms, with occasional dramatic shifts in function in the context of changing conditions. This contrasts greatly with conventional engineering and design approaches that apply tailor-made materials and tools to achieve well-defined functions that are specified a priori. We here propose that urban tinkering is the application of evolutionary thinking to urban design, engineering, ecological restoration, management and governance. We define urban tinkering as:A mode of operation, encompassing policy, planning and management processes, that seeks to transform the use of existing and design of new urban systems in ways that diversify their functions, anticipate new uses and enhance adaptability, to better meet the social, economic and ecological needs of cities under conditions of deep uncertainty about the future.This approach has the potential to substantially complement and augment conventional urban development, replacing predictability, linearity and monofunctional design with anticipation of uncertainty and non-linearity and design for multiple, potentially shifting functions. Urban tinkering can function by promoting a diversity of small-scale urban experiments that, in aggregate, lead to large-scale often playful innovative solutions to the problems of sustainable development. Moreover, the tinkering approach is naturally suited to exploring multi-functional uses and approaches (e.g., bricolage) for new and existing urban structures and policies through collaborative engagement and analysis. It is thus well worth exploring as a means of delivering co-benefits for environment and human health and wellbeing. Indeed, urban tinkering has close ties to systems approaches, which often are recognized as critical to sustainable development. We believe this concept can help forge much-closer, much-needed ties among engineers, architects, evolutionary ecologists, health specialists, and numerous other urban stakeholders in developing innovative, widely beneficial solutions for society and contribute to successful implementation of SDG11 and the New Urban Agenda.
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| 6. |
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| 7. |
- Goodness, Julie, et al.
(författare)
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Exploring the links between functional traits and cultural ecosystem services to enhance urban ecosystem management
- 2016
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Ingår i: Ecological Indicators. - : Elsevier BV. - 1470-160X .- 1872-7034. ; 70, s. 597-605
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Tidskriftsartikel (refereegranskat)abstract
- Functional traits have been proposed as a more mechanistic way than species data alone to connect biodiversity to ecosystem processes and function in ecological research. Recently, this framework has also been broadened to include connections of traits to ecosystem services. While many links between traits and ecosystem processes/functions are easily and logically extended to regulating, supporting, and provisioning services, connections to cultural services have not yet been dealt with in depth. We argue that addressing this gap may involve a renegotiation of what have traditionally been considered traits, and a targeted effort to include and expand upon efforts to address traits-cultural ecosystem services links in traits research. Traits may also offer a better way to explore the recognition and appreciation of biodiversity. Drawing upon examples from outside the explicit traits literature, we present a number of potential connections between functional traits and cultural ecosystem services for attention in future research. Finally, we explore considerations and implications of employing a traits approach in urban areas, and examine how connections between traits and ecosystem services could be developed as indicators in a research and management context to generate a robust and resilient supply of ecosystem services.
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| 8. |
- Goodness, Julie
(författare)
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Linking functional traits and cultural ecosystem services in urban areas through human preferences
- 2016
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Urban areas are now the daily lived experience for the majority of the world’s people, and it is therefore important to explore what kind of ecological communities and corresponding ecosystem functions and services are being generated in these environments. Urban areas are shaped by a variety of factors, but arguably one of the most influential is that of people, in terms of how their preferences and active selective choices for biota play out in the landscape. A better understanding of these processes and dynamics can contribute toward better scientific knowledge as well as inform management decisions for creating more robust and resilient landscapes of ecosystem function and services. A functional traits approach, which links particular aspects of organisms related to fitness to ecosystem processes, functions, and services, may provide one way of interpreting the significance of biodiversity in the urban landscape. While this approach has traditionally linked traits to processes and functions, recently it has been conceptually extended to include services. Links between traits and provisioning, regulating, and supporting services have been well-characterized, but connections to cultural services have been less explored. This thesis addresses this critical information gap and how human preferences could be connected to the traits framework through an examination of the connections between functional traits and cultural ecosystem services. Paper I, a literature review, investigates scholarship outside the explicit field of functional traits to identify potential trait-cultural service linkages. It finds the strongest base of support for connections between traits and aesthetic benefits (particularly visual); though connections to spiritual, heritage, and wellbeing benefits are also identified. It suggests that what is considered a “functional trait” may need to be revisited in light of the expansion of to include not only ecosystem processes and functions, but services as well. The paper also explores how functional traits could be operationalized in a management context, with the development of trait-service indicators. Paper II builds upon the work of Paper I, and provides an empirical, case study interrogation of connections between traits and cultural ecosystem services in Cape Town, South Africa. It examines people’s expressed preferences for plant traits, and finds that traits related to visual and aesthetic appeal are described as the most common reason for selection, though traits related to use (e.g. as food) and low resource input are also cited. It also points to other factors beyond preference that may influence human selection for plants in the landscape. Together, these two papers provide a more detailed understanding of human preferences for traits in urban areas, and which traits may be connected to which services. This builds knowledge within the functional traits field and provides a basis for further study in research. It also points to trait-cultural ecosystem service connections that can be harnessed in management actions to select for trait combinations that will provide both ecosystem services and ecosystem resilience.
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| 9. |
- Goodness, Julie, 1985-
(författare)
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Shaping urban environments through human selection for plant traits
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Cities, as home to the majority of the world’s people, are significant sites for addressing challenges of achieving sustainability and securing human wellbeing. Urban environments are complex social-ecological systems, and meeting these challenges requires better understandings of the interactions of social and ecological elements. While there are many possible lenses through which to study social-ecological systems, this thesis examines the potential of a traits approach as one way to link ecological elements to social values. In ecology, functional traits have been defined as the characteristics of organisms that determine how organisms respond to the environment, and how they affect ecosystem processes, functions, and services. While functional traits have an established history of being linked to ecosystem processes and functions, they have only recently been extended to social aspects through the operationalization of the ecosystem services concept. As such, there is a distinct gap in identifying traits that are relevant and important to people. This interdisciplinary thesis attempts to bridge some of this lacuna, through empirical studies conducted in two cities: Cape Town, South Africa, and Stockholm, Sweden. Paper 1 addresses connections between traits and social values generally across cities through a literature review that examines connections between traits and cultural ecosystem services. Paper 2 explores preferences for traits and reasons for plant selection in the context of Cape Town. Paper 3 examines vegetation patterns and the expression of socially-valued traits across different land cover and land use classes in Stockholm. Paper 4 serves as a synthesis and comparison piece between Cape Town and Stockholm, and brings together social data on plant preferences and ecological data on plant patterns gathered in both locations under two different projects. Overall, responses from social surveys of preferences suggest that people actively select for a variety of different plant traits in the urban environment, and have a multitude of reasons for selecting the plants that they do, related both to qualities of the plants themselves, as well as broader external factors at multiple scales. Vegetation surveys of plant patterns suggest that trait preferences may be inscribed by people in the landscape, though to differing degrees. Using traits as an approach to link ecological elements to social values exhibits advantages in that traits are a spatial unit that is easily understood by citizens and environmental managers. However, it presents limitations in terms of scale, as traits are most useful in connecting to pin-point characteristics in the landscape, and social values associated with broader scales may be overlooked. Collectively, however, the papers in this thesis suggest that traits may serve as one useful approach for discerning human values in the urban landscape, and can be used as indicators of social function. In management applications, particular traits can be incorporated into landscaping interventions to provide for urban areas of greater social meaning. In this way, traits may serve as one tool within the evolving toolbox of social-ecological system study, and thus can contribute to future urban landscapes that exhibit robust social and ecological function.
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| 10. |
- Graham, Marnie, 1980-
(författare)
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Postcolonial Nature Conservation and Collaboration in Urban Protected Areas : Everyday relations at Macassar Dunes/Wolfgat reserves, Cape Town, South Africa
- 2015
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Protected areas and nature conservation are profoundly shaped by Western ideas, and are embedded within powerful discourses and colonising practices. This thesis examines how colonialism and apartheid shape contemporary practices of nature conservation in Cape Town in South Africa - its institutions, geographies and peoples. Through three empirical studies of collaborative arrangements at the Macassar Dunes/Wolfgat nature reserves, the thesis develops a postcolonial nature conservation perspective to explore how colonial legacies live on, are contested and are re-shaped through everyday practices. Departing from Margaret Kovach’s Indigenous methodology, interviews and participatory observations are used to focus on collaborations as they occur in the everyday relations between people and nature, on-reserve and in the adjoining township areas. This shows how collaborative arrangements bring together participants across historical and social divides, including municipal nature conservators and residents from apartheid-era racially-segregated townships. Results illustrate how colonising legacies persist at wider and institutional levels through exclusionary conservation practices, a focus on biodiversity preservation, and through sustained racialised relations. Nonetheless, this thesis argues that some of the most transformative collaborative practices occur within ad hoc, informal, and unmanaged interactions, involving deeply interpersonal and ethically challenging situations. Through these interactions, conservators and community participants are re-defining what it means to be ‘postcolonial nature conservators’ in Cape Town. These everyday practices engage difficult and fraught steps that allow us to consider what it means to belong, to reconcile and to be responsible to nature and to each other in a postcolonial city. With its focus on collaboration as everyday relations, the thesis brings to the literature one of the first in-depth studies of urban nature conservation from the rapidly growing cities of the global South. It contributes critical analyses to emerging debates around nature conservation, urban nature, and colonial legacies and opens crucial questions around expertise, knowledge, informality and poverty.
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