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Decades of decline, disinvestment, and racism have left Detroit with an abundance of abandoned buildings, ruins, vacant lots, and illicit trash dumps. Though these structures and materials might have forfeited their previous purposes, they can act as catalysts, substances, and co-creators of artworks. The paper is thus interested in examining the intricate interplay between art, space, and materiality in Detroit further. Drawing from the practices of local artists Olayami Dabls and Scott Hocking, the paper adopts a new materialist framework to investigate the dynamic agency of matter in the artistic process. By considering materials as active participants in the production of art and space, the paper seeks to add to the emerging interest in the emancipation and meaning making of material in art as well as cultural geography's engagements with new materialism.

Renewable energy infrastructures, such as wind and solar farms, require land on which they can be deployed. While politics and conflicts over accessing land for renewables are well documented, the role, conditions and potential agency of landownership have been often overlooked or oversimplified as a powerful terrain in the field of renewables development. In this paper, we explore the relationship between landed property and community renewable energy projects. In particular, we focus on how landed property variously influences the development modes of renewables by acting as a mediator, barrier and enabler for different types of wind energy projects. We show how this takes place through appropriation of rents in processes of assetisation and value grabbing by landowners. In this way, value grabbing acts as a vital intermediary process to understand green grabbing and wider processes of capital accumulation through renewables. We draw on insights from the Netherlands and Scotland to illuminate different mechanisms, social and historical conditions, and policies through which landed property constrains or enables community wind energy projects. The paper finishes by sketching out some alternative ways of allocating land for the deployment of renewable energy projects, which could help shift the balance of power in favour of community energy developments.

No abstract available.

„German Theory“ is a theory that has not yet been written, but could have been. „Theory“ is here understood as a “territory of thought” that transcends the boundaries of its origins, and travels to other sites. „French Theory“, for example, is the label for the travel of French poststructuralism to Anglophone humanities. In this sense, „German Theory“ does not exist (yet), but as this paper will argue, it exists as a potentiality that has not (yet) actualized. To show this potential, this paper turns to the work of Friedrich A. Kittler. To illustrate why Kittler did not become a cornerstone of „German Theory“, and to discuss how it could have been, this paper proceeds in two steps: first, it traces the recent history of the reception of Foucault in German language geography and the humanities. This analysis shows that Kittler and German language geography morphed Foucault's discourse theory into two distinct thought styles – the „discourse school“ in German language geography into a „textual“ one; Kittler into a „materialist“ one. This incompatibility of thought styles, this paper asserts, obstructed the travel of Kittler to Anglophone geography, although Kittler's notion of „materiality of communication“ resonates with the „material turn“ in Anglophone geography. Nor did the Foucault of the „discourse school“ travel to Anglophone geography. Kittler's „German Foucault“ travelled to Anglophone media studies as „German School“, though. In the last part of the paper, I ask the question how Kittler's „German Foucault“ could have travelled to (anglophone) geography and what could have been gained theoretically through this travel.

Urban political ecology (UPE) has recently turned its attention to the embodied dimension of human–nature relations. In particular, within urban hydrological systems across the globe, the need to consider the emotional and bodily ways in which we connect to the ecologies of the city has been acknowledged. This paper joins such efforts and explores the flood experiences of a diverse group of Bangkokians during the 2011 inundation by drawing on three interconnected concepts: materiality, affect and emotion. Together they help us explore the intense experiences of Bangkokians during the flood and serve as theoretical tools to unpack the uncanny encounters between Bangkokians and the materiality of the flood. Thus, the paper attends to the socio-material forces that shaped the flooding event and contributes nuanced insights about the embodied experiences of floods within the delta city.

In the form of an explorative empirical study, this paper deals with the reasons for the survival and demise of isolated Swiss ski lifts. For the first time, all isolated lifts documented in Switzerland have been recorded and coded according to a total of six conditions. Using a set-theoretical research method in the form of qualitative comparative analysis (QCA), the study aims to identify the necessary conditions and configurations of sufficient conditions explaining (non-)survival. It transpires that closed isolated lifts tend to be outdated and have no technical snowmaking facilities. Moreover, it has become evident that the simultaneous occurrence of the lack of lift facility replacement, lack of technical snowmaking and high ski area competition has caused the closure of most isolated lifts. Low natural snow depth and low elevation difference, conversely, have not had a measurable impact. The causes for the survival of isolated lifts, by contrast, are extremely heterogeneous.

Sustainable development is of equal concern to Geography as an academic discipline and Geography Education. Given Geography's explicit conceptual and thematic affinity to sustainable development, various professional organizations developed normative documents proclaiming Geography to the main carrier subject of Education for Sustainable Development (ESD). The aim of this paper is to explore what effects the special proximity of school Geography to the promotion of ESD has on the design of geographical specialist knowledge. Lower secondary Geography curricula (1992–2022) of the federal state of Berlin served as sample for content analysis. Viewed in light of work from the History of Education, Sociology of Education, and Subject Education, the results show a progressive loss of disciplinary identity accompanied by a concurrent shift in focus from factual judgments to value judgments.

This paper discusses the opportunities and challenges of integrating science and technology studies (STS), especially the variant based on actor–network theory (ANT), into fields of human geography with a critical research tradition. Drawing on the experiences of political ecology and empirical research on carbon markets, it uses the example of reducing emissions from deforestation and forest degradation (REDD+) to show how the turn towards such STS impacts has changed the “framing” of REDD+: from analysing REDD+ as an example of the “neoliberalization of nature” and a focus on the impacts on human forest users to detailed accounts of infrastructures and practices of making markets. Discussing the consequences of these observations and different proposals brought forward to combine ANT with political ecology, the paper argues for a conscious and reflective use of ANT-inspired STS approaches to benefit from the additional insights this approach allows while keeping the critical potential of geography alive.

On-wafer measurements are of fundamental importance to the characterization of active and passive devices at millimetre-wave frequencies. They have been commonly known to be ambitious and challenging due to the occurrence of parasitic effects originating from probes, multimode propagation, crosstalk between adjacent structures and radiation. While a lot of investigations have been performed for conventional coplanar waveguides (CPW) measured on ceramic chucks, the parasitic effects occuring in conductor-backed CPWs (CB-CPWs) have not been fully understood yet. Therefore, this paper presents a thorough study for CB-CPWs based on electromagnetic simulations. Additionally, this paper proposes an analytical description accounting for the probe geometries to predict the occurrence of resonance effects due to the propagation of the parallel-plate-line (PPL) mode. For the first time, a new analytical description including the effects of the probe geometries is presented and validated by both measurements and simulations.

Ever since the operation of the first civilian Earth observation (EO) satellites gained momentum in the 1970s, potential benefits and disadvantages of transferring space science and technologies, such as remote sensing techniques, have also been discussed in relation to developing countries. However, this debate has so far largely taken place at a macro-comparative level. This paper presents results from moving to the ethnographic micro level in southwest Nigeria. It sets the experiences of researchers from the Global South, who use remote sensing data, in relation to a critical review of (post-)development theory perspectives and corresponding discourses in postcolonial science and technology studies (STS). The paper discusses how researchers construct collective agency towards capacity building as a shared liberatory language in relation to an amalgam of experienced and contested places in the EO community. At the intersection of STS, geography and the arena of development policies, these experiences create their own spatial references to a developing niche that invites scholars and development practitioners to rethink and reorganise knowledge production and technologies in a postcolonial world.

Based on a review of existing research on adaptive capacity, we identify a research gap in theorizing institutions, power structures, and agency in municipal climate change adaptation processes. Drawing on sociological institutionalism, governmentality, and communicative planning theory, we use post-structuralist concepts of power to to elucidate the collective (de-)mobilization of existing stocks of capacities within municipal institutions of adaptation with a focus on structural power and agency in participation processes. The concept of reflexive capacity is introduced as the ability of organizations such as municipal administrations to incorporate diverse stakeholders and knowledge into decision-making processes in a local context, which is derived from the relationship of power with with power over. The emergence and transformation of reflexive capacity are illustrated and discussed with one case study municipality in Germany, revealing the potential of this concept for the analysis of participation in adaptation processes and the power structures that are inherent to them. In the paper, we incorporate the concept of reflexive capacity with established concepts of adaptive capacity, creating an integrated framework termed institutional adaptive capacity. The analysis concludes that examining power structures and agency in the context of climate change adaptation explains how capacity stocks and individual psychosocial capacity mobilization are institutionally embedded and influenced by reflexive capacity. We argue that the consideration of power structures and agency can provide a complementary approach to explaining adaptive capacity and call for further transdisciplinary empirical research on this topic in different settings of state-initiated adaptation processes.

The debate on the political role of Ratzel's thinking during the first half of the 20th century usually focuses on Nazi Germany and the concept of Lebensraum, but provides little information about its reception in other linguistic contexts. In order to fill this gap, the paper explores the re-elaboration of Ratzel's political geography in Italy from the beginning of the 20th century to the end of the fascist period, when the term of “spazio vitale” (living space) became a key element of the Italian projects for the postwar “new order”. The paper argues that the Italian understanding of Ratzel oscillated between irredentist and imperialist interpretations, deeply influenced by the domestic and international situation. Moreover, it traces how the second interpretation emerged at the very beginning of the century – long before Rudolf Kjellén and Karl Haushofer – and gained momentum in the 1930s, as Italian intellectuals used the concept of living space to promote expansionism and the trilateral rapprochement with Germany and Japan.

Around the world, smart grids are emerging as a universal tool to address a wide range of social and technical problems facing energy systems. Despite considerable research on these systems, the ways they differ in the local (re)production of power relations have so far been little discussed. This paper fills this gap by developing a “situated governmentality approach” in conversation with the critique of Foucauldian governmentality studies. By applying this approach to smart grid strategies in Germany (Smart Energy Showcases – Digital Agenda for the Energiewende, SINTEG) and India (National Smart Grid Mission, NSGM), we identify different ways in which power is mediated through situated governmentalities. While SINTEG employs technologies of power that promote a disciplinary regime, the exercise of power in the case of the NSGM displays many elements of a digitally enhanced sovereign approach. The findings reveal the range of governmental programmes that can be realized through smart grids and open up a perspective on the situated functioning of smart grids in energy transitions.

While a broad debate on carceral geographies has been part of human geography and related disciplines in English-speaking academia, there are only scarce publications among German-speaking geographers. This special issue aims at bringing different researchers (Tobias Breuckmann, Julia Emprechtinger, Sarah Klosterkamp, Nadine Marquardt, Marco Nocente, Marina Richter and Anna Schliehe) and their rich and diverse research insights in the carceral field into a dialogue. What started with a session at the 2019 conference of German-speaking geography (Deutscher Kongress für Geographie), developed into a special issue that encompasses papers based on the contributions to the session as well as additional papers that round up the insights into current research in carceral geographies in German-speaking countries. The papers show the importance of applying a carceral geography perspective to research in German-speaking geography to focus on different institutions, places and spaces that share common carceral characteristics. In addition, the focus on German-speaking researchers also adds to the international debate on carceral geographies with specific insights from the national contexts.

Energy justice is a rapidly developing area of research and policy advocacy. Recently, some critiques have been formulated, particularly from postcolonial, political ecology, and more-than-human perspectives, such as the concept's rootedness in Western thought and its too narrow anthropocentric focus. This paper presents an integrative model of various energy justices including perceptions that allow for a more nuanced and expanded understanding, drawing on recent concepts of environmental and energy justice. This analytic perspective integrates understandings of justice as a subjective belief, including increased consideration of the role of emotion in evaluating justice. According to this understanding, there is no “one” energy justice. Instead, there are multiple, sometimes contradictory, and fluid perceptions of justice.

Against the backdrop of ongoing planetary crises, this paper discusses the ambivalent relationship between large-scale material infrastructure, particularly energy technologies, and environmental justice. Inspired by relational and practice-oriented understandings of infrastructure, it develops a conceptual approach for energy-related environmental justice research, which is exemplarily applied to the emerging issue of green hydrogen, drawing on brief insights from the hydrogen frontrunner countries Colombia and Canada and associated struggles over Indigenous sovereignty. This “infrastructural lens”, based on three epistemological shifts – from infrastructure to “infrastructuring”, from social imaginaries to “sociotechnical imaginaries” and from human infrastructuring to “planetary infrastructuring” – provides deeper insights into how patterns of justice and injustice are practically infrastructured and what kinds of imaginaries they evoke or are entangled with. Moreover, it makes tangible how practices of infrastructuring can themselves become part of a broader political ontology, that is, of struggles over ways of being and ways of relating to planet Earth.

This paper examines whether and to what extent the application of the method of hermeneutic photography can contribute to reducing epistemic relations of violence and thus to decolonizing empirical social research. To this end, an empirical study by the author is subjected to a re-reading and methodological reflection from postcolonial perspectives. On the basis of this, it will then be worked out which potentials and limits the work with the method of hermeneutic photography offers for research projects that are carried out in countries of the so-called Global South.

Deportation is often studied in the context of research into the administration, enforcement, and control of immigration, with researchers highlighting the violent effect on deportees and studying the various actors involved in the deportation process. This contribution adds to the growing literature on deportation infrastructures by emphasizing the inseparability of deportation procedures from the specific sites in which they unfold, as well as highlighting the analytical interest and political agency of such spaces. My socio-material approach applies a rather classical understanding of infrastructure, asking what three specific deportation sites – prisons, hospitals, and airports – can tell us about deportation procedures as a technology of immigration enforcement. Using Switzerland as a case study, this paper analyses deportation procedures, including the role of human and non-human actors, paying particular attention to the situatedness and relationality of deportation infrastructures. The socio-material analysis of the architecture of the three sites under discussion ultimately exposes deportation as violent statecraft.

This paper was initiated by a multidisciplinary Topic Workshop in the frame of the Deutsche Forschungsgemeinschaft Priority Program 1158 “Antarctic Research with Comparative Investigations in Arctic Ice Areas”, and hence it represents only the national view without claiming to be complete but is intended to provide awareness and suggestions for the current discussion on so-called big data in many scientific fields. The importance of the polar regions and their essential role for the Earth system are both undoubtedly recognized. However, dramatic changes in the climate and environment have been observed first in the Arctic and later in Antarctica over the past few decades. While important data have been collected and observation networks have been built in Antarctica and the Southern Ocean, this is a relatively data-scarce region due to the challenges of remote data acquisition, expensive labor, and harsh environmental conditions. There are many approaches crossing multiple scientific disciplines to better understand Antarctic processes; to evaluate ongoing climatic and environmental changes and their manifold ecological, physical, chemical, and geological consequences; and to make (improved) predictions. Together, these approaches generate very large, multivariate data sets, which can be broadly classified as “Antarctic big data”. For these large data sets, there is a pressing need for improved data acquisition, curation, integration, service, and application to support fundamental scientific research. Based on deficiencies in crossing disciplines and to attract further interest in big data in Antarctic sciences, this article will (i) describe and evaluate the current status of big data in various Antarctic-related scientific disciplines, (ii) identify current gaps, (iii) and provide solutions to fill these gaps.

Research on agricultural development models shows that local applications of global models are adapted both to the globalisation of agricultural markets and to climate change. The circulation of such models is also linked to local political and historical contexts. However, few studies have focused on abrupt changes in economic policies, such as those following the Arab Spring. We propose to study the evolution of olive-growing development policies in post-revolutionary Tunisia. In order to mitigate both market- and climate-induced vulnerabilities and to make the sector more competitive with major olive producers, Food and Agriculture Organization (FAO) guidelines recommend intensification of Tunisian olive farming through irrigation. Our research makes two main claims: (1) the change in the production model towards irrigation aims to respond to globalisation, climate change and national policies. (2) Some exporters are involved at several levels of the value chain. This research conducted by geographers and economists analyses the mutations of the olive sector towards irrigation, using a double theoretical framework on the circulation of agricultural development models, with a political-ecology approach. This paper contributes to a growing body of research on the relationship between commodity production networks and water studies.

No abstract available.

Research on perceptions of climate change impacts contributes to understanding motivations for adaptation action and increases the legitimacy of climate adaptation research and policy. The body of literature on climate change perception (CCP) is extensive. Given that the perception of climate change is commonly presented as being dependent on an individual's sociocultural and spatial contexts and that climate change is an abstract concept with different dimensions of meaning, this paper systematizes the research in an actor-centered manner. Using a systematic literature review, the abstracts from 821 interdisciplinary studies on CCP were coded and statistically analyzed. The results show that predominantly knowledge about the CCP of vulnerable groups of actors and regions was generated using quantitative methods. Impacts at the collective and institutional levels of CCP were rarely explored. This indicates an individualizing perspective of research on climate adaptation of vulnerable actors. Conclusions for future research are drawn.

Defining experiences of climate change loss and damage (L&D) is the topic of contentious debate across the social sciences and humanities. In this paper, we contribute to this debate by making loss(es) from climate change better legible. After detailing the complexity of the L&D debate from both a political and scientific perspective, we turn to phenomenological theory (Martin Heidegger, Tetsuro Watsuji, Bernhard Waldenfels) in order to make sense of climate's presence and the absences generated from changing climates. The phenomenology of loss we develop promises to help account for experiences of climate change that escape more traditional (social) scientific approaches to both economic and non-economic losses. More broadly, we present an alternative approach to applying phenomenology to research in social science (on climate change).

Precise position information is important for terrestrial and airborne surveying systems, such as unmanned aerial vehicles (UAVs). Those systems often rely on real-time kinematic (RTK) global navigation satellite systems (GNSSs) for position determination, where the GNSS antenna mounting environment impacts the GNSS position accuracy to a great extent. This paper investigates the impact of different supplementary groundplane shapes, sizes, and materials on multi-band patch and helical GNSS antennas at both, the UAV rover and RTK base station with respect to the achievable position accuracy. The groundplanes consist of solid aluminum sheets or copper plated printed circuit boards (PCBs) and are mounted directly underneath the GNSS antennas. Appropriate supplementary groundplanes are found to significantly improve the GNSS position accuracy in the majority of test cases.

The use of sensors has grown dramatically in recent years and many devices rely on the information they provide. The lack of proper security mechanisms available to control the use of sensors and the high degree of integration make them more vulnerable to Intentional Electromagnetic Interference (IEMI). The aim of this paper was to investigate the impact of IEMI on separate sensors with privileged access to the hardware and software to pursue a deep analysis of the effects of IEMI attacks using pulse modulated signals. Measurements were carried out in a shielded hall using an open TEM (Transverse Electromagnetic) waveguide in the 100 MHz–7.5 GHz frequency range. A variety of effects were observed and significant differences were found with pulse modulated signals compared to continuous wave signals. These results indicate weak points in the sensors hardware leading to possible hardening measures.

In recent years, the fast construction, expansion and repowering of wind parks have been a major source of concern for the weather radar community and meteorological services. Among others because wind turbines are extremely tall, reflective, and moving objects, which make them a source of interference that is hard to distinguish from meteorological echoes and therefore difficult to filter and even more difficult to correct. Polarimetric C-Band Doppler weather radar measurements enable us to analyse and understand the impact of wind turbine interference on meteorological weather radar echoes and to build up knowledge. The main idea is to analyse the raw IQ-data in order to quantify the behaviour of wind turbine interference with meteorological scattering. As a first step in this direction, this paper will focus on the derivation and analysis of radar moments such as Reflectivity (Z), Differential Reflectivity (ZDR), Differential Propagation Phase (PHIDP), Mean Doppler Velocity (V), and Correlation Coefficient (RHOHV). We will consider two cases: (i) events with precipitation, and (ii) events without precipitation, in order to understand and model the impact of wind turbine interference (WTI). For this purpose, weather radar measurements from Deutscher Wetterdienst (DWD), recorded under the aegis of the project RIWER (Removing the Influence of Wind Park Echoes in Weather Radar Measurements), are presented, analysed and discussed in detail.

Magnetic nanoparticles offer numerous promising biomedical applications, e.g. magnetic drug targeting. Here, magnetic drug carriers inside the human body are directed towards tumorous tissue by an external magnetic field. However, the success of the treatment strongly depends on the amount of drug carriers, reaching the desired tumor region. This steering process is still an open research topic. In this paper, the previous study of a linear Halbach array is extended by an additional Halbach array with different magnetization angles between two adjacent magnets and investigated numerically using COMSOL Multiphysics. The Halbach arrays are arranged with permanent magnets and generate a relatively large region of a moderately homogeneous, high magnetic field while having a strong gradient. This results in a strong magnetic force, trapping many particles at the magnets. Afterwards, to avoid particle agglomeration, the Halbach array is flipped to its weak side. Therefore, the magnetic flux density, its gradient and the resulting magnetic force are computed for the different Halbach arrays with different constellations of magnetization directions. Since the calculation of the gradient can lead to high errors due to the used mesh in Comsol, the gradient was derived analytically by investigating two different fitting functions. Overall, the array with a 90∘ shifted magnetization performs best, changing the magnetic sides of the array easily and deflecting more particles. Besides, the results revealed that the magnetic force dominates directly underneath the magnets compared to the other existing forces on the SPIONS. Summarized, the results depict that the magnetic force and, thus, the region where the particles are able to get washed out, can be adjusted using low-cost permanent magnets.

Capsule endoscopy is a promising diagnostic tool for the entire gastrointestinal tract. Since a patient swallows the capsules, their size must be sufficiently small. The principal built-in components are cameras, silver-oxide batteries, light emitting diodes, and an antenna for transmitting the video. For diagnosis and treatment, the precise localization of the capsules for specific video frames is required. Recently, static magnetic localization of these capsules with an integrated permanent magnet showed promising results. However, in the state-of-the-art, relatively large magnets compared to the small capsules were used. Therefore, in this extended paper, the localization performance of a recently proposed optimized differential static magnetic localization method for different sized disc and ring magnets was evaluated. The ring magnets were designed for integration with the two batteries of commercial capsules. The magnets were evaluated in static and dynamic scenarios to evaluate the performance of the method in a patient's daily life. It was revealed that the mean position and orientation errors did not exceed 5 mm and 4∘, respectively, for all applied magnets except for the 1.5 and 3 mm long disc magnets. Moreover, the results indicated that the ferromagnetic batteries of capsule endoscopes increase the localization performance when they are centered within a diametrical ring magnet. Overall, it was revealed that the localization performance of the optimized differential method is significantly better than the state-of-the-art even when the magnet volume is significantly reduced compared to previous work. Therefore, it was concluded that 5 mm long disc magnet or a ring magnet are excellent candidates for integration into a commercial capsule for magnetic localization and yield the advantage of being passive magnetic sources.

In early summer 1980, radical geography students rallied around the slogan „Geografe nüme schlafe!“ („Geographers, stop sleeping!“) to take part in the radical youth movement that shook the city of Zurich at that time. In turn, these activist students brought these struggles back into the university and the geography department, where they confronted the professorate with their demands for a new curriculum. This paper argues that the antagonistic Stimmung, in which these struggles took place, produced a radical „thought style“ that flourished in a specific constellation of „thought events“: a prominent theory seminar in 1980, the AK WissKri, a network of radical geography students, the „Geoscope“ journal and, finally, a number of diploma theses on feminist, urban and historical geography. In these thought events, a radical geography materialized outside and beyond the mainstream of German language geography. Building on archival material and narrative interviews, this paper documents these student initiatives for a radical geography, and illustrates the precarious conditions of possibility of radical geography, in Zurich, and beyond.

This paper develops three analytical categories – range, supporting capacity, exigency/notability – to capture how supra-individual phenomena affect the people studied by empirical research. Researchers face a tension between constructivist and realist perspectives as the examined phenomena are simultaneously social constructs, in the way people perceive and understand them, and social facts in their consequences. Taking a critical perspective on the notion of large social phenomena – popularized by Theodore Schatzki – the paper develops an explorative terminology that aims to facilitate practice-oriented field research. Examples of empirical research on transition and degrowth initiatives illustrate how research subjects estimate the range of a phenomenon by trying to grasp whether they are in or out of its reach; the supportive capacity of a phenomenon by exploring how far it carries certain processes; and they experience the exigency of a phenomenon and ascribe a certain notability to it. Taken together, this terminology grasps the way phenomena are matters of concern, rather than matters of fact, for the research subjects.

Time shapes every single human–environment relationship and is inherent in 21st-century global challenges such as climate change and the urgent move towards global sustainability. Nonetheless, the concept of time is still insufficiently addressed in climate justice debates. This paper aims to help fill this gap by presenting empirical results about experiences of climate change in farming communities in Tamil Nadu, South India, and fishing communities on the Lofoten Islands, Norway. With the help of the five dimensions of affectedness, rhythms and rituals, slow motion, care, and health and well-being, it exemplifies how time matters to issues of climate injustices faced by the communities. The paper promotes a qualitative understanding of time and climate change. Thereby, it may stimulate greater relatability to climate change, as well as discussion likely to lead to conceptual advances.

Thirty years after the Cold War, many aspects of the West's self-identification are still shaped by othering ‚the East‘. This geographical identity-building in Western media discourses is indicated by terms like geopolitics and the (New/Second) Cold War. The paper scrutinizes ‚grand‘ narratives behind the appearances of such concepts and observes their continuities, dislocations, and disruptions. Taking a critical geopolitical perspective informed by discourse theory and based on Foucault's conceptualization of the archive, the paper introduces aspects of the transformation of geopolitical imaginations of the East and the West: (1) it reconstructs phases of the rebirth of geopolitics after WW2 until today. (2) It focuses on the changes in the East-West relations after 1990 and shows how the imagination of the ‚cold war‘ disappears from media discourse. (3) Finally, it analyses the revival through rising geopolitical risk-narratives since the crises and wars in Georgia and Ukraine.

The article introduces collaborative comic creation (CCC) as a methodological tool. The central question it addresses is how marginalised imaginations of futures can be made visible in the context of the planned Lamu Port-South Sudan-Ethiopia-Transport (LAPSSET) in Kenya. The question assumes that infrastructure projects such as the LAPSSET corridor inscribe not only particular ways of moving into a landscape but also one specific temporality that marginalises other future-making practices. The paper participates in the ongoing debate about how imagined futures and future-making practices can be appreciated and analysed methodologically. It thus contributes to the literature on geographies of the future by drawing together conceptual insights from anthropology, infrastructure studies, and critical cartography. Based on these different approaches, the paper proposes to regard future-making practices not only in relation to contentious timelines but also in terms of lines made by moving and drawing on landscapes and surfaces. Using a review of existing social foresight methods as a basis, we describe the practical implementation of CCC. Subsequently, the analysis of one collaboratively produced comic illustrates how the method can help to visualise ambivalent and uncertain imaginations of different futures that oppose the unitary vision of modernity produced by dominant infrastructural visions of a single future. We conclude by reflecting on possible ways of developing the method further.

The measures implemented to adapt to climate change are primarily designed to address the tangible, biophysical impacts of climate change in a given geographic area. They rarely consider the wider social implications of climate change, nor the politics of adaptation planning and its outcomes. Given the necessity of significant investment in adaptation over years to come, adaptation planning and implementation will need to place greater concern on justice-sensitive approaches to avoid exacerbating existing vulnerabilities and creating maladaptive and conflicting outcomes. Building on recent calls for more just and transformative adaptation planning, this paper offers a flexible analytical framework for integrating theories of justice and transformation into research on climate change adaptation. We discuss adaptation planning as an inherently normative and political process linked to issues pertaining to recognition justice as well as distributional and procedural aspects of justice. The paper aims to contribute to the growing discussion on just adaptation by intersecting theoretical justice dimensions with spatial, temporal and socio-political challenges and choices that arise as part of adaptation planning processes. A focus on justice-sensitive adaptation planning not only provides opportunities for examining spatial as well as temporal justice issues in relation to planning and decision-making processes. It also paves the way for a more critical approach to adaptation planning that acknowledges the need for institutional restructuring and offers steps towards alternative futures under climate change conditions.

Agriculture depends in large part on relations with weather phenomena, such as rain and temperature. Anticipatory knowledge about the atmosphere therefore is vital in agricultural livelihoods. Based on an ethnographic case study of weather forecasting for small-scale farming in western Kenya, in this paper I discuss different ways in which knowledge about the future weather is produced. While development organizations promote expert forecasts that draw on meteorological sensing technologies as a solution to dealing with climate change, I show how knowing the weather is an entangled affair in a sensory assemblage that simultaneously draws on scientific instruments and on other entities such as animals, plants, clouds and embodied sensoria associated with experiential knowledge. Building on concepts related to science and technology studies that address the relations between humans and nonhumans, I suggest to treat scientific and experiential devices symmetrically by looking at their more-than-human sensoria, proxies and imaginations to understand how farmers attune to the weather. In practice, then, navigating the uncertainties of the weather is not enabled by scientific meteorology alone, but by combining different sensory devices and practices of interpretation that together mediate the weather as something to be known and acted upon.

This paper examines the contribution of Italian academic geography to the processes of nation-building between ca. 1880–1920. With reference to Friedrich Ratzel's works, it explores the ways in which biological and vitalist theories shaped political processes. In the decades between Italy's national unification until the first post-war period, Italian academic geographers helped to consolidate the nation-state by means of theoretical reflection, applied research, and education. The main focus of geographers was in defining the national space and its boundaries, especially by developing a scientific analysis that could establish the exact position of the terrestrial border along the Alpine chain. The scientific topic was strongly connected with the nationalist question of irredenta, which garnered growing consideration in the last 2 decades of the 19th century. The epistemological turn in Italian geography was particularly influenced by new approaches in German geography introduced by scholars such as Oscar Peschel and Friedrich Ratzel and aimed to formulate a general understanding of biogeography in its relationship with the earth's physical space. The reception of this theoretical model in the political debate and the way it was applied in the following decades proved highly significant.

This article examines the constitution of affective atmospheres that arise through the encounter of scientific and theatre practices. Using an autoethnographic approach, the presented work focuses on a collaborative theatre project on the climate crisis. Here, the author performed in the role of a scientific expert next to colleagues that have a climate change-related research background. Three aspects of affective atmospheres emerging in the rehearsal process are analysed: one's position in the interplay of powerful materialities, the relationality of sensual bodies, and the (in)stability of scientific identities. This paper shows that the artistic collaboration opens up space for reflecting on science that seek to overcome ostensible dualisms of subject/object, mind/body, and reason/emotion. It emphasizes the opportunity of art to bring into account body, more-than-humanity and relationality as part of scientific practices in times of anthropocentric debates facing climate change.

Equality, a concept so central to democratic societies, is being scrutinized in a critical manner in this paper. It argues that the spatial borders of territorial states are also the limits of the validity of the principle of abstract equality, of its ideological productivity as well as its emancipatory potential. The paper discusses the Marxist critique of the limitations of the merely abstract, formal understanding of equality that is inscribed into the structures of democratic states, and the ways in which both the Marxist tradition and current theories of radical democracy find an emancipatory potential in the demand for abstract equality that makes possible going beyond its very abstractions. The focus of these discussions is on how spatiality is integrated into theories of radical democracy on the level of theory. The paper suggests that combining the insights on the productivity of spatial forms from discussions in human geography with the critique of merely abstract equality is a decidedly geographical contribution to the development of theories of the political.

This paper discusses the need for a deeper critical interrogation of participatory mapping (PM) method as a tool for social justice. This stance is informed by the author's involvement in a NGO and community-led PM project in an informal settlement in Khayelitsha (Cape Town, South Africa). The paper argues that academic PM literature is ill-equipped to truly examine its potential for social justice. Firstly, this is due to the PM empowerment framework having shifted from an emancipatory aim to a governing tool. Secondly, this shift does not allow for the consideration of the power relations inherent to PM to be engaged with. This paper concludes by engaging the three epistemological and postcolonial roots of PM in order to provide a starting point for (re)centering PM on social justice.

Automobility still dominates transport and space in most European cities. However, more and more initiatives are being taken to encourage a transition towards low-carbon mobility. One of these is car-free housing, where residents commit to living without a private car. This paper addresses their profiles and motivations based on a questionnaire survey (N=571) and interviews (N=50) in nine housing developments in Germany and Switzerland. Residents are characterised by an overrepresentation of families and people with a high level of education, two population groups that are usually more motorised than average. Their motivations and long-term commitment to living car-free can be explained by not only practical reasons (e.g. availability of alternative modes) but also ecological awareness and social values (as shown by the importance of cooperative housing). This paper sheds light on these urban laboratories where the principles of a post-car system are implemented.

The American geographer Ellen Churchill Semple (1863–1932), famous for her work on environmental influence, is often framed as a mere disciple of the German geographer Friedrich Ratzel (1844–1904). Drawing on a reading of Semple's published and unpublished works as well as correspondence and diaries, this paper sheds new light on the two anthropogeographers' intellectual relationship, which was in fact one with benefits to both sides. Semple found in Ratzel's geography a detached and scientific language with which to reinterpret American history. He drew on her as an informant on issues of racial segregation in the United States. Although Semple remained loyal to his broader intellectual project after his death, she had begun, soon after they met, to develop her own brand of anthropogeography, freed from the ambivalences of his work. Her sharpened reformulation, which he had endorsed, would ultimately make anthropogeography an easier target for its critics.

During the First International Polar Year (1882–1883) in the Arctic, Germany set up a meteorological and magnetic station at South Georgia in the South Atlantic, where the transit of Venus in front of the Sun on 6 December 1882 could also be observed. After the return of the expedition the station decayed over the years. Otto Nordenskjöld's Swedish Antarctic expedition and Wilhelm Filchner's German Antarctic expedition passed by in 1902 and 1911, respectively, and gave some information about the status of the huts and scientific installations. 100 years after the polar year only some relics remained. The paper describes the historical station and wants to encourage an archeological investigation to learn more about the social life of the station members.

Emotions affect how humans relate to others and define their place in the world. They thus shape responses to socio-ecological problems like climate change. In spite of the overwhelming knowledge and concern about climate change, a lack of appropriate moral and political consequences prevails in most contemporary societies. Instead of trying to explain climate inaction as a result of (un)awareness, this paper introduces a new perspective by conceptualising climate inaction as an active social process animated by emotions. Drawing on an interdisciplinary and radically relational perspective, I grasp climate inaction as a product of more-than-human intra-action and explore the affective role of emotions within this production. To illustrate how emotions energise climate inaction, I sketch how fear, grief, and hope animate current climate responses.

In this article, I will utilize the elusive and fluid identity and texture of water to complicate an essentialist view of modern water that finds new relevance in claims to close the financing gap to provide safely managed water for all by the year 2030. To close this gap, models of blended finance are pursued that rely on transparent and auditable performance data of digital systems. Tracing the implementation of pay-as-you-go (PAYGo) water dispensers in off-grid areas in the Global South, I will demonstrate that the supposedly transparent and objective data generated from remote monitoring systems form part of the enactment of only one water reality amidst the multiple enactments of waters in relation to their sociotechnical environments, non-human encounters, and human bodies. Drawing on ethnographic material from two different settings in Kenya – the so-called informal Nairobi settlement of Mathare and a village called Kondo – I will show that, on the one hand, waters' multiplicity proliferates and, on the other hand, multiple waters and alternative water realities are deliberately undone. The paper closes with a call for the attentiveness to multiple waters.

A central diagnosis driving research around social relations of nature is the thesis of the “end of nature”. In an era marked by climate change and global warming, the image of nature as a pristine and stable foundation of human existence seems outdated. In light of this, recent scholarship demonstrates how environmental changes and conflicts increasingly affect people's daily lives and present significant threats to psychic well-being. In contrast, in this paper we investigate the conditions under which nature continues to function as an effective source of `ontological security'. As part of an international comparative research project that engages geographical imaginaries of security and insecurity in Berlin, Vancouver, and Singapore, we analyze how nature is imagined by city dwellers as an object of desire that offers a place of refuge to escape the burdens from urban everyday life. Against this background, we emphasize imaginary nature as a powerful everyday source for the ontological security of subjects even under today's postnatural conditions.

In the era of automated and connected driving, more and more cars will be equipped with wireless transmission technologies such as mobile communications 4G (LTE) and 5G, WiFi, Bluetooth, and V2X. For the technical implementation of V2X-communications, different standards like cellular-V2X from the cooperation 3rd Generation Partnership Project and ITS-G5, based on the WiFi standard 802.11p from the Institute of Electrical and Electronics Engineers, are under consideration. The electromagnetic environment of cars and the corresponding exposure of the general public to wireless emission will be significantly influenced by new radio technologies. Under all circumstances, it must be ensured that the exposure of the electromagnetic fields inside a car does not cause any harmful effects on humans. In order to quantitatively assess the resulting exposure, the generated exposure must be correctly recorded and evaluated according to their specific time-frequency spectra. This paper describes a new measurement procedure suitable for the V2X-standard ITS-G5 together with various exposure measurements performed in different cars with WiFi, Bluetooth and ITS-G5. In comparison of all wireless standards studied here, the V2X-service generated the highest electric field strengths inside a car, when a transmitting di-patch antenna was mounted on the windscreen inside the driver's cabin. The maximum fraction of the corresponding ICNIRP reference level amounted to 15.1 %. We conclude that the total exposure of wireless on-board automotive devices will be dominated by ITS-G5, if the transmitting antenna is located inside the passenger cabin. As V2X-communications will increasingly penetrate road traffic, the resulting exposure should be carefully monitored, in order not to exceed the corresponding reference levels for general public.

This paper serves as an introduction to the “Contested urban territories: decolonized perspectives” special issue. The idea for this issue emerged during our reflections on a socioterritorial perspective, preeminent in the current Latin American analysis of contemporary urban struggles (Schwarz and Streule, 2016). It aims to contribute to these ongoing debates about a specific understanding of urban territories from a postcolonial and decolonized perspective by combining contributions from two paper sessions we organized at the 2017 meeting of the American Association of Geographers in Boston with additional papers by scholars who could not participate in the conference. All seven contributions tackle the question of what a relational and dynamic conceptualization of territory may contribute to current debates in the urban studies field. Put more precisely, to which extent are socioterritorial approaches of value for a further decentering and pluralizing of urban theory? What is their significance to research on urban social movements? And, finally, how does such a socioterritorial perspective nurture and complement an analysis of the social production of space? The present special issue invites the reader to get familiar with new concepts and engage in a critical reflection on the conditions of knowledge production in urban geography and beyond.

This paper focusses on a transmission line (TL) based model which allows to investigate the impact of multilayered obstructions in the propagating path of a radar signal at different distances and in combination with disturbances. Those disturbances can be water, snow, ice, and foliage at different densities, temperatures, positions, with a given thickness and layer combination. For the evaluation of the detectability of objects, the impulse response of the system can be obtained. Investigations employing state-of-the-art radar hardware confirm the consistency of theoretical and experimental results for 24 and 77 GHz. The analysis in this paper supports testing the specifications for radar systems, before carrier frequency and antenna layout are finally decided. Thereby, the radar system parameters can be adjusted toward employed carrier frequency, bandwidth, required sensitivity, antenna and amplifier gain. Since automotive standards define operational environmental conditions such as temperature, rain rate, and layer thickness, these parameters can be included and adapted. A novel optimisation methodology for radomes is presented which allows to boost the dynamic range by almost 6 dB with presence of a worst-case cover layer of water. The findings can be utilised to properly design radar systems for automotive applications in autonomous driving, in which other vulnerable road users have to be protected under all circumstances.

The relationship between “national” geographical schools and an increasingly globalized geographical theory-building under the logics of Anglophone hegemony has generated critical debate within geography. This paper aims to contribute to current discussions on the development of differential, language-based “schools of thought” in geography and how these are mobilized and de- and recontextualized when they travel beyond their origins. However, it does not focus on the period of Anglophone hegemony but intends to shed a new, historically informed light on the politics of geographical knowledge production. Against this backdrop, we study why, how and with what consequences German geographical knowledge traveled to Argentina in the 1940s – the end of the “German hegemony” – following the employment by the National University of Tucumán (UNT) of the four German geography professors Wilhelm Rohmeder, Gustav Fochler-Hauke, Fritz Machatschek and Willi Czajka, all of whom had been institutionally and ideologically entwined with National Socialism. Firstly, we show that the epistemic differences between “national” schools of geographical thought – skillfully juggled by the geographers we analyze here – can provide an opportunity for the successful de- and recontextualization of theory. Secondly, we argue that boundary spanning and the traveling of theory beyond their geographical origins – largely (implicitly) viewed as progressive – should always be put in context(s) and assessed more cautiously from a normative point of view.

Human-animal relations are often experienced viscerally. These corporeal, affective, sensual and emotional realities cannot easily be put into words and adequately expressed through linear and textual forms. For this reason, this paper investigates the potential of comics in more-than-human geographies. It identifies three different ways of how geographers approach this field of research and communication: (1) comic analysis, (2) comic semiotics and (3) comic practice. In their comic drawings geographers try to make specific viewpoints, moments, emotions and relations visible that have been underexposed either socio-politically or in terms of scientific practice. The article then discusses more-than-human qualities of comics, arguing that graphic narratives emerge as productive tools to reveal „the in_between“ of humans and nonhumans. It further describes an exemplary approach to a collaborative comic and how visceral or nonverbal aspects in human-animal relations can be expressed and experienced, using the empirical study of returning wolves to Switzerland.