Kati Orru

Mitigating and adapting to climate change: Multi-functional and multi-scale assessment of green urban infrastructure

In order to develop climate resilient urban areas and reduce emissions, several opportunities exist starting from conscious planning and design of green (and blue) spaces in these landscapes. Green urban infrastructure has been regarded as beneficial, e.g. by balancing water flows, providing thermal comfort. This article explores the existing evidence on the contribution of green spaces to climate change mitigation and adaptation services. We suggest a framework of ecosystem services for systematizing the evidence on the provision of bio-physical benefits (e.g. CO2 sequestration) as well as social and psychological benefits (e.g. improved health) that enable coping with (adaptation) or reducing the adverse effects (mitigation) of climate change. The multi-functional and multi-scale nature of green urban infrastructure complicates the categorization of services and benefits, since in reality the interactions between various benefits are manifold and appear on different scales. We will show the relevance of the benefits from green urban infrastructures on three spatial scales (i.e. city, neighborhood and site specific scales). We will further report on co-benefits and trade-offs between the various services indicating that a benefit could in turn be detrimental in relation to other functions. The manuscript identifies avenues for further research on the role of green urban infrastructure, in different types of cities, climates and social contexts. Our systematic understanding of the bio-physical and social processes defining various services allows targeting stressors that may hamper the provision of green urban infrastructure services in individual behavior as well as in wider planning and environmental management in urban areas.

The Impact of Residential Location and Settlement Hierarchy on Ecological Footprint

This study addresses the question of how residential location influences the ecological footprint (EF) of households. The type and location of settlements are considered one of the key determinants of the patterns of mobility and consumption, and their associated environmental load. As different settlement types bring different consumption intensities causing adverse environmental effects, the search for the best settlement structure is complicated. We study the environmental load of 16–17-year-old high school students from thirty randomly selected schools located across Estonia by means of a questionnaire survey. The study finds that the EF of high school students is significantly affected by the position of their residence in the settlement hierarchy as a result of different levels of affluence, density, and accessibility to goods and service, all of which vary spatially. Students from the metropolitan area of Tallinn tend to place a larger load on the environment and have higher EF values than students from the rest of Estonia. In addition, higher per capita income and larger living spaces tend to increase the footprint of these students. The results show that the strong sociospatial stratification of Estonian residents, symptomatic of a transitional society, is evident also in their environmental consumption load and mobility habits.

Not ‘dead letters’, just ‘blind eyes’: the Europeanisation of drinking water risk regulation in Estonia and Lithuania

This paper draws on a detailed empirical study of the implementation of the EUs Drinking Water Directive in Estonia and Lithuania in order to understand the factors shaping the Europeanisation of risk regulation regimes in Eastern accession states. Adopting a ‘whole-regime’ methodological approach, the paper explores the key drivers and constraints shaping the transposition as well as the practical implementation of the law. The study shows how ‘conditionality’ pressures to adopt the EU acquis in order to access European economic and financial support networks have reinforced, rather than overcome, historically entrenched regulatory cultures. Going beyond well-known typologies of Europeanisation, the paper identifies a distinctive ‘blind-eye’ style of Europeanisation in which conditionality pressures have favoured selective compliance with ill-suited EU rules at the expense of tackling significant drinking water risk problems. The paper shows how such symbolic policy practices have been shaped through a combination of the countries’ shared Soviet legacies of elite-centred and legalistic governance cultures, the active coping strategies of street-level inspectors, as well as wider sociopolitical contexts that have limited the impact of civil society actors such as scientists, NGOs, and the general public in strengthening risk regulation in the Baltic states. The paper also shows, however, that the different post-Soviet ideological orientations and administrative reform programmes of Eastern European accession states can override their common Soviet legacies and lead to significant national variation in risk regulation processes and outcomes.

Satisfaction with virtual nature tour: the roles of the need for emotional arousal and pro-ecological motivations

ABSTRACT Interactive multimedia enables a mediated nature experience in ecologically vulnerable areas. The aim of this study is to clarify the social and individual motivational factors governing satisfaction with virtual nature tours. After visiting the Piusa Caves Nature Reserve in Estonia, and participating in its virtual tourism (VT), 299 tourists responded to a questionnaire regarding their natural and VT experiences. We use a general linear model to explore the effectiveness of predicting satisfaction with VT based on values, beliefs about treating nature, pro-ecological norms, and need for emotional arousal from virtual experiences. Compared to people with a high need for arousal, people with a low need are more easily satisfied with VT, regardless of its weak emotional triggers, e.g. lack of lively impressions, feeling of place change, and connection to real nature. Pro-ecological beliefs augment satisfaction with VT in people with a high need for arousal. Mediated nature experiences offer ways of engaging with nature more conveniently to hedonistic travellers and would likely be rejected by people who seek social interaction and physical challenges when travelling. As VT is better received among women, lower educated people, and 50–70-year-olds, these may be ideal target groups for promotion of mediated nature experiences.

The use of 3D visualization for sustainable tourism planning

ABSTRACT This paper describes the results of using 3D visualization (3DV) in sustainable tourism planning (STP) during the Comcot project in Estonia. Organizers were interviewed on the characteristics of 3DV for STP and on how participants were involved in discourse using 3DV. The study describes experiences from the Setu, Maidla, and Võrtsjärv lake regions of Estonia. The content analysis of the interviews suggested that the precise selection of visualization objects, detalization levels, and user interface characteristics may significantly influence the quality of STP sessions and help to optimize time, financial, and human resources allocated for a project. The coherent design of the 3DV tool and the neutral moderator positively affect the level of participant involvement in STP and support a trusted platform for community decision making.

Residents’ Self-Reported Health Effects and Annoyance in Relation to Air Pollution Exposure in an Industrial Area in Eastern-Estonia

Eastern Estonia has large oil shale mines and industrial facilities mainly focused on electricity generation from oil shale and shale oil extraction, which produce high air pollution emissions. The “Study of the health impact of the oil shale sector—SOHOS” was aimed at identifying the impacts on residents’ health and annoyance due to the industrial processing. First, a population-wide survey about health effects and annoyance was carried out. Second, the total and oil shale sectors’ emitted concentrations of benzene, phenol, and PM2.5 were modelled. Third, the differences between groups were tested and relationships between health effects and environmental pollution studied using multiple regression analysis. Compared to the control groups from non-industrial areas in Tartu or Lääne-Viru, residents of Ida-Viru more frequently (p < 0.05) reported wheezing, chest tightness, shortness of breath, asthma attacks, a long-term cough, hypertension, heart diseases, myocardial infarction, stroke, and diabetes. All health effects except asthma were reported more frequently among non-Estonians. People living in regions with higher levels of PM2.5, had significantly higher odds (p < 0.05) of experiencing chest tightness (OR = 1.13, 95% CI 1.02–1.26), shortness of breath (1.16, 1.03–1.31) or an asthma attack (1.22, 1.04–1.42) during the previous year. People living in regions with higher levels of benzene had higher odds of experiencing myocardial infarction (1.98, 1.11–3.53) and with higher levels of phenol chest tightness (1.44, 1.03–2.00), long-term cough (1.48, 1.06–2.07) and myocardial infarction (2.17, 1.23–3.83). The prevalence of adverse health effects was also higher among those who had been working in the oil shale sector. Next to direct health effects, up to a quarter of the residents of Ida-Viru County were highly annoyed about air pollution. Perceived health risk from air pollution increased the odds of being annoyed. Annoyed people in Ida-Viru had significantly higher odds of experiencing respiratory symptoms during the last 12 months, e.g., wheezing (2.30, 1.31–4.04), chest tightness (2.88, 1.91–4.33 or attack of coughing (1.99, 1.34–2.95).