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In this study, we evaluated university students’ attitudes towards environmental issues, with a particular focus on the cohort’s understanding of climate change and knowledge of environmental issues. We also explored whether students’ gender or university major (natural sciences vs humanities and social sciences) impact attitudes to environmental issues.

We surveyed undergraduate students (n = 1,310) using an online questionnaire comprising 17 statements that reflect attitudes towards environmental concerns. This questionnaire was constructed using a 5-point Likert Scale and was tested for reliability and validity to ensure its precision and consistency in assessing the targeted constructs.

The results revealed that the surveyed students had a medium level of positive attitudes towards the environment. While no significant differences based on gender were observed, students from different university majors significantly differed in the degree to which they endorsed positive attitudes towards the environment, with those majoring in natural sciences reporting stronger attitudes to environmental issues. These findings warrant the implementation of mandatory courses on the environment at UAE universities so as to enhance students’ awareness and foster positive attitudes towards the environment.

Unlike previous studies that may have focused narrowly on specific environmental attitudes or behaviors, this research offers a broad yet detailed assessment by incorporating factors such as students' academic majors and gender. By comparing attitudes across different fields of study—natural sciences versus humanities and social sciences, the study provides new insights into how educational background and demographic variables shape environmental perceptions. This approach allows for a more nuanced understanding of the factors that influence environmental attitudes among young adults, potentially guiding more targeted educational interventions.

Due to land resource scarcity, sustainable urban development in high-density cities has long been challenging. As such, many cities are formulating plans to “dig deep”, resulting in more citizens working and/or staying underground for longer periods of time. However, owing to the particularities of underground space, the factors involved in the creation of a healthy environment are different from those involved in aboveground developments. This study thus aims to investigate the influences of various underground environment factors on users' health through a holistic approach.

To achieve this aim, 12 underground sites and 12 corresponding aboveground sites are selected for a large-scale questionnaire survey, resulting in 651 survey samples. The survey covers post-occupancy evaluation of health (physical and psychosocial), underground environmental quality (visual, thermal, acoustic comfort, indoor air quality and ventilation), space design and greenery. Independent-sample T-test, Pearson correlation, multiple regression modelling and structural equation modelling are used to investigate whether significant differences exist between health of underground and aboveground users, and to develop an underground environment-health model for unveiling the significant associations between underground environment factors and users' health. To cross validate the results, an objective field measurement study is further conducted on six underground sites. The objective measurement results are used to cross validate the survey results.

The questionnaire results provide the following evidence: (1) health of underground users is significantly poorer than that of their aboveground counterparts; (2) underground development users' health is significantly affected by space design, greenery and environmental quality in terms of thermal comfort, indoor air quality, ventilation and acoustic comfort but not visual comfort; and (3) amongst the various identified factors, space design has the strongest predicting effects on human health. The field study echoes the survey findings and further unveils the relationships between different environmental factors and human health.

The results shed light on the importance of distinguishing between underground developments and aboveground ones in various guidelines and standards, especially those related to space management.