The liveability of cities worldwide is under threat by the predicted increase in intensity and frequency of heatwaves and the absence of a clear spatial overview of where action to address this. Heat stress impairs vital urban functions (Böcker and Thorsson 2014), hits the local economy (Evers et al. 2020), and brings risks for citizens’ health (Ebi et al. 2021). The ongoing densification of cities may escalate the negative consequences of heat, while rising climate adaptation ambitions require new pathways to (re)design public places for a warmer climate. Currently, policy makers and urban planners rely on remote sensing and modelling to identify potential heat stress locations, but thermal comfort models alone fail to consider socio-environmental vulnerabilities and are often not applicable in different countries (Elnabawi and Hamza 2020).In the Cool Towns Interreg project, researchers collaborated with municipalities and regions to model urban heat stress in nine North-Western European cities, to find vulnerabilities and to measure on the ground (see Spanjar et al. 2020 for methodology) the thermal comfort of residents and the effectiveness of implemented nature-based solutions. Using the Physiological Equivalent Temperature (PET) index, several meteorological scenarios were developed to show the urban areas under threat. The PET maps are complemented by heat vulnerability maps showing key social and environmental indicators. Coupled with local urban planning agendas, the maps allowed partner cities to prioritize neighbourhoods for further investigation. To this end, community amenities and slow traffic routes were mapped on top of the PET maps to identify potential focus areas.A comparative analysis of the collated maps indicates certain spatial typologies, where vital urban activities are often influenced by heat stress, such as shopping areas, mobility hubs, principal bicycle and pedestrian routes. This project has resulted in the development of a multi-level Thermal Comfort Assessment (TCA), highlighting locations where vulnerable user groups are exposed to high temperatures. Standardized for European cities, it is a powerful tool for policy makers and urban planners to strategically identify heat stress risks and prioritize locations for adapting to a changing climate using the appropriate nature-based solutions.
MULTIFILE
Biomimicry is an emerging discipline that seeks nature’s advice and brings diverse stakeholders together to create designs that emulate the way nature functions, not just the way it looks. The field itself is a multidisciplinary endeavor, yet biomimicry educators frequently work alone. Pedagogical methods based on trial and error may waste precious time. In this study, a set of four biomimicry experts from diverse disciplines and different areas around the globe collaborated to compare pedagogy and analyze student work to illuminate best principles for teaching students to translate biology into design solutions, a key step in the biomimicry design process. A total of 313 assignments created by 179 different students were evaluated. The results showed that the inclusion of art in the learning of science, namely the hand drawing of the biological mechanism can lead to higher quality of abstracted design principles. Stevens, L., Bidwell, D., Fehler, M., Singhal, A. (2022). The Art and Science of Biomimicry—Abstracting Design Principles from Nature. In: Rezaei, N. (eds) Transdisciplinarity. Integrated Science, vol 5. Springer, Cham. https://doi-org.ezproxy.hhs.nl/10.1007/978-3-030-94651-7_29
Digital nature can provide a substitute for real nature for those who have limited access to green space, or are confined to their homes, for example during the worldwide COVID-19 lockdown. In a large-scale online survey, respondents (N = 1203) watched videos of digital nature, varying in terms of type of nature (wild versus tended nature) and spaciousness. Results show a significant increase of feelings of connectedness to the community after watching digital nature. Furthermore, tended nature scenes elicited more social aspirations than wild nature scenes. A multiple regression model further shows that living further away from nature was a significant predictor for loneliness scores, while number of nature interactions during a week was not. Results of this study confirm the importance of nature interaction for mental and social wellbeing for the general population and stress the potential of digital nature as a complementary strategy. These findings are of particular relevance to those who lack access to nature due to old age and related mobility constraints or a lockdown.
National forestry Commission (SBB) and National Park De Biesbosch. Subcontractor through NRITNational parks with large flows of visitors have to manage these flows carefully. Methods of data collection and analysis can be of help to support decision making. The case of the Biesbosch National Park is used to find innovative ways to figure flows of yachts, being the most important component of water traffic, and to create a model that allows the estimation of changes in yachting patterns resulting from policy measures. Recent policies oriented at building additional waterways, nature development areas and recreational concentrations in the park to manage the demands of recreation and nature conservation offer a good opportunity to apply this model. With a geographical information system (GIS), data obtained from aerial photographs and satellite images can be analyzed. The method of space syntax is used to determine and visualize characteristics of the network of leisure routes in the park and to evaluate impacts resulting from expected changes in the network that accompany the restructuring of waterways.
Structural colour (SC) is created by light interacting with regular nanostructures in angle-dependent ways resulting in vivid hues. This form of intense colouration offers commercial and industrial benefits over dyes and other pigments. Advantages include durability, efficient use of light, anti-fade properties and the potential to be created from low cost materials (e.g. cellulose fibres). SC is widely found in nature, examples include butterflies, squid, beetles, plants and even bacteria. Flavobacterium IR1 is a Gram-negative, gliding bacterium isolated from Rotterdam harbour. IR1 is able to rapidly self-assemble into a 2D photonic crystal (a form of SC) on hydrated surfaces. Colonies of IR1 are able to display intense, angle-dependent colours when illuminated with white light. The process of assembly from a disordered structure to intense hues, that reflect the ordering of the cells, is possible within 10-20 minutes. This bacterium can be stored long-term by freeze drying and then rapidly activated by hydration. We see these properties as suiting a cellular reporter system quite distinct from those on the market, SC is intended to be “the new Green Fluorescent Protein”. The ability to understand the genomics and genetics of SC is the unique selling point to be exploited in product development. We propose exploiting SC in IR1 to create microbial biosensors to detect, in the first instance, volatile compounds that are damaging to health and the environment over the long term. Examples include petroleum or plastic derivatives that cause cancer, birth defects and allergies, indicate explosives or other insidious hazards. Hoekmine, working with staff and students within the Hogeschool Utrecht and iLab, has developed the tools to do these tasks. We intend to create a freeze-dried disposable product (disposables) that, when rehydrated, allow IR1 strains to sense and report multiple hazardous vapours alerting industries and individuals to threats. The data, visible as brightly coloured patches of bacteria, will be captured and quantified by mobile phone creating a system that can be used in any location by any user without prior training. Access to advice, assay results and other information will be via a custom designed APP. This work will be performed in parallel with the creation of a business plan and market/IP investigation to prepare the ground for seed investment. The vision is to make a widely usable series of tests to allow robust environmental monitoring for all to improve the quality of life. In the future, this technology will be applied to other areas of diagnostics.
Former military fortifications are often repurposed for tourism and recreation. While some of over 100 Dutch forts are recognized as UNESCO World Heritage sites, a substantial number are currently underdeveloped, putting their cultural and natural heritage at risk. Developing these forts in a conscious and collaborative way promises to not only preserve their heritage value, but also facilitate enjoyable and healthy experiences for visitors. Moreover, under-developed forts provide an opportunity to solve another pressing challenge, namely overtourism. Visitor pressure at tourist attractions has led the Netherlands Board of Tourism and Conventions to call for spreading visitors to lesser-known areas. Less-developed forts are among the most promising of these. Development initiatives depend on a transition from isolation to cooperation across sites. However, for cooperation to be effective, agencies managing these forts have indicated an urgent need for data on visitor characteristics and experiences. The purpose of the present project is to measure and analyze visitor demographics, motivations, and experiences at less-developed forts, and to develop a toolkit to inspire, support, and monitor development of these forts for natural and cultural heritage preservation and improved visitor experience. This proposal builds on the previous project, “Experiencing Nature” which utilized Breda Experience Lab technologies to measure visitor experiences at Fort de Roovere. We now aim to broaden this proven approach to a broader variety of forts, and to translate visitor data into actionable advice. The consortium includes a changemaking network of the Alliantie Zuiderwaterlinie (NL), Regionale Landschappen (VL), and Agentschap Natuur en Bos (VL). This Dutch-Flemish network aims to connect formerly isolated forts to one another, and represents a broad diversity of fortified sites, each with unique challenges. The project will thus facilitate interregional collaboration, especially toward coming Interreg EU proposals, and inform interregional marketing campaigns and planning for management and conservation.
