Reality, causes, consequences: the role of climate change perceptions in climate adaptation

The climate on Earth is changing. Extreme weather events will occur more frequently and become more severe. Individuals and households need to engage in a wide repertoire of actions to adapt to these risks, ranging from supporting adaptation policies, to seeking information about climate-related risks, to implementing preparative measures in and around the home. In this dissertation, we examine whether people’s perceptions of the reality, causes, and consequences of climate change are general antecedents of these different adaptation actions. Across four chapters, we find that climate change perceptions can encourage different adaptation action, particularly information seeking and policy support.Yet, climate change perceptions are not a silver bullet to promoting any type of adaptation action. It is also important that people perceive risks from specific climate-related hazards, that they perceive themselves as capable of implementing adaptation behaviours, and that they perceive adaptation behaviours as effective. Policies that consider both climate change perceptions as well as more hazard- and behaviour-specific variables such as risk perception and efficacy beliefs are therefore critical in promoting widespread adaptation

Are subsidies for climate action effective? Two case studies in the Netherlands

An often used policy instrument to promote climate change mitigation and adaptation action are subsidies. Yet, it remains unclear to what extent subsidies are effective in motivating behavioural change. Subsidies are effective if they lead to adoption of the behaviour by individuals different from those who would adopt otherwise. On the bases of two theoretical frameworks, we examine the effectiveness of two subsidy schemes in the Netherlands. In Study 1 (n = 151), we applied the Transtheoretical Model and argued that a subsidy for climate adaptation measures is effective if it not only attracts those in the action and preparation stages of the model, but also people in the precontemplation and contemplation stage. In Study 2 (n = 367), we applied the Diffusion of Innovations Theory and argued that a subsidy for electric vehicles is effective if it attracts not only innovators and early adopters, but also early and late majority adopters. In both studies, we examined the extent to which subsidies remove financial barriers and serve as a cue to action. In Study 1, we found that the subsidies primarily attracted people who were in the action and preparation stages. In Study 2, we found that a subsidy for electric vehicles did not attract more early and late majority adopters compared to those who adopted an electric vehicle without a subsidy. In both studies we found that the subsidy mainly served as a cue to action, and was less likely to remove financial barriers

Climate Anxiety:A Research Agenda Inspired by Emotion Research

Climate anxiety refers to persistent, difficult-to-control apprehensiveness and worry about climate change. Research to better understand the prevalence, indicators, causes, and consequences of climate anxiety is needed, to which emotion researchers can make substantial contributions. First, emotion theory can inform an integrative and functional theory of climate anxiety, mapping interactions between its cognitive, emotional, behavioural, and physiological indicators. Second, appraisal theories can help to understand the reasons why people experience climate anxiety. Third, emotion researchers can contribute to theorizing when climate anxiety motivates climate action, accounting for non-linearity, interactions with other emotions and cognitions, and temporal dynamics. Fourth, emotion researchers can contribute to developing strategies to cope with climate anxiety, for example, by building on emotion regulation theory.</p

Relationships between climate change perceptions and climate adaptation actions:policy support, information seeking, and behaviour

People are increasingly exposed to climate-related hazards, including floods, droughts, and vector-borne diseases. A broad repertoire of adaptation actions is needed to adapt to these various hazards. It is therefore important to identify general psychological antecedents that motivate people to engage in many different adaptation actions, in response to different hazards, and in different contexts. We examined if people’s climate change perceptions act as such general antecedents. Questionnaire studies in the Netherlands (n = 3,546) and the UK (n = 803) revealed that the more people perceive climate change as real, human-caused, and having negative consequences, the more likely they are to support adaptation policy and to seek information about local climate impacts and ways to adapt. These relationships were stronger and more consistent when the information and policies were introduced as measures to adapt to risks of climate change specifically. However, the three types of climate change perceptions were inconsistently associated with intentions to implement adaptation behaviours (e.g. installing a green roof). This suggests that climate change perceptions can be an important gateway for adaptation actions, especially policy support and information seeking, but that it may be necessary to address additional barriers in order to fully harness the potential of climate change perceptions to promote widespread adaptation behaviour

Plasma cholesteryl ester fatty acids do not mediate the association of ethnicity with type 2 diabetes: results from the HELIUS study

Scope: Ethnic minority groups have a higher risk of type 2 diabetes (T2D) than the host population. Our aim was to identify whether plasma cholesteryl ester fatty acids (CEFA) mediate the ethnic differences in type 2 diabetes. Methods and results: We included 202 Dutch, 206 South-Asian Surinamese, 205 African Surinamese, 215 Turkish and 213 Moroccan origin participants of the HELIUS study (Amsterdam, the Netherlands). Logistic regression was used to determine the associations between plasma CEFA and T2D. Mediation analysis was used to identify whether CEFA contributed to the association between ethnicity and T2D. We adjusted for ethnicity, age, sex, smoking, physical activity and BMI. Associations between plasma CEFA and T2D were similar across all ethnic groups. Although differences in plasma CEFA across ethnic groups were observed, CEFA did not mediate the differences in T2D prevalence between ethnic groups. Conclusion: Although ethnic differences in plasma CEFA were found and CEFA were associated with T2D, CEFA did not contribute to the difference in T2D prevalence between ethnic groups. If confirmed, this implies that maintenance of the more beneficial CEFA profiles in the non-Dutch ethnic groups may be encouraged to prevent an even higher prevalence of T2D in these groups

Total physical activity might not be a good measure in the relationship with HDL cholesterol and triglycerides in a multi-ethnic population: a cross-sectional study

<p>Abstract</p> <p>Background</p> <p>Evidence suggests that physical activity (PA) has a beneficial effect on high-density lipoprotein cholesterol (HDL) and triglycerides. However, observational studies show contrasting results for this association between different ethnic groups. It is unclear whether this is due to differences in the PA composition. The aim of this study was to assess the relationship of the total PA, along with its intensity and duration, with HDL and triglycerides in a multi-ethnic population.</p> <p>Methods</p> <p>The study population was sampled from the SUNSET study and included: 502 European- Dutch, 338 Hindustani-Surinamese, and 596 African-Surinamese participants living in Amsterdam, the Netherlands. We assessed PA with the SQUASH questionnaire. We calculated age-sex-adjusted betas, geometric mean ratios (GMRs), and prevalence ratios (PRs) to assess the relationship of PA with HDL and triglycerides.</p> <p>Results</p> <p>In the adjusted models, the highest total PA tertile compared to the lowest tertile was beneficially associated with HDL (beta: 0.08, 95% CI: 0.00, 0.16 and PR low HDL 0.59, 95% CI: 0.39, 0.88) and triglycerides (GMR: 0.93, 95% CI: 0.83, 1.03 and PR: 0.56, 95% CI: 0.29, 1.08) for the African-Surinamese. No statistically significant associations appeared for total PA among the European-Dutch and Hindustani-Surinamese. The adjusted models with the intensity score and HDL showed beneficial associations for the European-Dutch (beta: 0.06, 95% CI: 0.03, 0.10) and African-Surinamese (beta: 0.06, 0.02, 0.10), for log triglycerides for the European-Dutch (beta: -0.08, 95% CI: -0.12, 0.03), Hindustani-Surinamese (beta: -0.06, 95% CI: -0.16, 0.03), and African-Surinamese (beta: -0.04, 95% CI: -0.10, 0.01). Excepting HDL in African-Surinamese, the duration score was unrelated to HDL and triglycerides in any group.</p> <p>Conclusions</p> <p>Activity intensity related beneficially to blood lipids in almost every ethnic group. The activity duration was unrelated to blood lipids, while the total PA 'summary score' was associated only with blood lipids for African-Surinamese. The difference in total PA composition is the most probable explanation for ethnic differences in the total PA association with blood lipids. Multi-ethnic observational studies should include not only a measure of the total PA, but other measures of PA as well, particularly the intensity of activity.</p

Follow-up, treatment, and reinfection rates among asymptomatic Chlamydia trachomatis cases in general practice

BACKGROUND: Adequate treatment and follow-up of patients is essential to the success of a screening programme for Chlamydia trachomatis. There has been a lack of data on follow-up, confirmation of infections, and reinfection rates among asymptomatic patients in general practice. AIM: 7b study the rates of diagnostic confirmation of C trachomatis infection, successful treatment, and reinfection one year after cases were detected in a screening programme for asymptomatic infections. DESIGN OF STUDY: Prospective cohort study SETTING: Fifteen general practices in Amsterdam, The Netherlands. METHOD: One hundred and twenty-four patients with asymptomatic C trachomatis infections were requested to provide a cervical or urethral swab and a urine specimen, for the purpose of diagnostic confirmation before being treated. One year after the first screening, all of the patients were invited for a second screening. All samples were tested using the ligase chain reaction (Abbott Laboratories, Chicago, USA). RESULTS: Out of 124 patients, 110 (89%) attended the scheduled appointment for diagnostic confirmation and treatment; 92 (84%) of them were confirmed to be positive and received treatment. At the second screening a year later, none of the 56 patients who had received treatment and who had been screened a second time were reinfected. CONCLUSION: No asymptomatic patients werefound to have reinfections with C trachomatis one year after diagnostic confirmation and treatment. This underlines the effectiveness of the screening and treatment strateg