Greenhouse gases such as sulfur dioxide, nitrogen dioxide, and carbon dioxide have been recognized as the prime cause of global climate change, which has received significant global attention. Among these gases, carbon dioxide is considered as the prominent gas which motivated researchers to explore carbon reduction and mitigation strategies. Research work on this domain expands from carbon emission reporting to identifying and implementing carbon mitigation and reduction strategies. A comprehensive study to map global research on carbon emissions is, however, not available. Therefore, based on a scientometric analysis method, this study reviewed the global literature on carbon emissions. A total of 2945 bibliographic records, from 1981 to 2019, were extracted from the Web of Science core collection database and analyzed using techniques such as co-author and co-citation analysis. Findings revealed an increasing trend of publications in the carbon emission research domain, which has been more visible in the past few years, especially during 2016–2018. The most significant contribution to the domain was reported from China, the United States, and England. While most prolific authors and institutions of the domain were from China, authors and institutions from the United States reported the best connection links. It was revealed that evaluating greenhouse gas emissions and estimating the carbon footprint was popular among the researchers. Moreover, climate change and environmental effects of carbon emissions were also significant points of concern in carbon emission research. The key findings of this study will be beneficial for the policymakers, academics, and institutions to determine the future research directions as well as to identify with whom they can consult to assist in developing carbon emission control policies and future carbon reduction targets.

The need to mitigate climate change has become a major global concern, and greenhouse gas emissions are a major cause of global climate change. Therefore, the need to curb greenhouse gas emissions has been well recognized by global researchers, policymakers and academics. Carbon emissions of hotel operations have seized the attention of global researchers. However, carbon emissions of the hotels in developing countries remain to be a less explored domain. Therefore, carbon emissions of Sri Lankan hotels were explored using a case study approach. Five hotels in the Colombo suburb were explored, which revealed that each hotel released more than 7000 tons of carbon annually. Results further indicated the use of purchased electricity as the dominant source of carbon emissions. Emissions caused by transport activities were not included in the calculations due to the unavailability of data. Recommendations were made to overcome the issues identified during data collection as well as to reduce the carbon emissions from hotel operations. Wider adoption of the methodology used in this research will benefit the hotels to keep track of the carbon emissions using a systematic approach.

Whilst operational carbon (OC) emission reduction has received greater attention in the literature, embodied carbon (EC) emission reduction aspect has been largely neglected. This is particularly seen in developing countries. This study assessed the awareness and perception of carbon emission in general and EC emission reduction strategies in particular in the Sri Lankan construction industry. A detailed questionnaire, based on a comprehensive literature review, was developed to assess the awareness and perception of the Sri Lankan construction professionals about global carbon emissions, OC emissions, and EC emissions and carbon mitigation strategies. Based on a sample of 111 professionals in the construction sector, results revealed that the Sri Lankan construction professionals have poor awareness about carbon emission, especially about EC emission and EC mitigation strategies. The results further revealed that they are more concerned about the OC emission reduction than the EC emission reduction. The results suggest that they are basically aware of some basic/conventional mitigation strategies such as better design (low-carbon), an extension of building life and refurbishment of existing buildings and carbon tax, but their awareness of recently introduced micro-level technologies/strategies is significantly poor. Findings are a clear reflection of the current situation in many developing countries with regard to carbon emission and mitigation strategies. It was found that a major reason for low awareness was related to the culture: The majority of the respondents believed that actions to reduce carbon footprint should be initiated and handled by the government and other authorities, but not by construction professionals.

Purpose: This study explores the current status of risk management (RM) in Sri Lanka and the obstacles in implementing RM in Sri Lankan small construction projects.Design/methodology/approach: The current research study adopted a quantitative research method. Using a purposeful sampling strategy, 100 construction companies engaged in small construction projects in Sri Lanka were selected and a questionnaire was distributed among top managerial employees of these companies. Employees belonging to 47 companies responded to the survey which provided information relating to 812 construction projects. The collected data were analyzed using the RM implementation index (RMII) and other quantitative measures such as mean, median and percentages.Findings: The research findings indicated that RM incorporation was at a lower degree in small construction projects in Sri Lanka. The findings further indicated that RM incorporation was relatively high in the public construction projects compared to the private construction projects. The main obstacles identified through the survey for RM implementation were: “lack of funding”, “lack of time”, “low profit margin”, “not economical” and “lack of knowledge”.Research limitations/implications: The study was limited to exploring RM implementation in small construction projects in Sri Lanka. The study was limited to the building construction companies under the 150-million-rupee (approx. below 450,000 USD) financial limit registered with the construction industry development authority in Sri Lanka.Originality/value: RM in small construction projects in developing countries is a relatively less explored domain. Sri Lankan construction industry is another relatively less explored domain in terms of new management technique implementation such as RM and value management. The quantitative approach used for the study revealed that RM implementation is at a lower degree in the small construction projects. Moreover, several obstacles pertaining to RM implementation were recognized through this study. These findings will be useful for the construction stakeholders to overcome the recognized barriers and effectively use RM in their respective construction projects.

Purpose: Although case-based learning (CBL) has gained considerable attention as an active learning strategy in higher education, empirical evidence regarding its effectiveness in facilities management (FM) education, particularly within developing-country contexts, remains limited. This study examines the students' perceptions of CBL in relation to knowledge application, soft skills, learning preferences, and employability among FM undergraduates at a state university in Sri Lanka. Design/methodology/approach: A quantitative survey generated 268 responses, of which 221 complete responses were retained for analysis. Descriptive statistics and Friedman tests were used to examine students' perceptions, learning preferences and differences across academic levels, with effect-size measures used to assess practical significance. Findings: Students generally perceived CBL as contributing positively to knowledge application, critical thinking, self-directed learning, teamwork, engagement, and professional preparedness. They also associated CBL with greater confidence in problem-solving, decision-making under uncertainty, and handling industry-related responsibilities. Collaborative and application-oriented approaches, particularly group discussions and action-based activities, were preferred over more complex methods such as role-play and integrated project-based tasks. Overall, these findings are consistent with the principles of Experiential Learning Theory and Work-Integrated Learning, suggesting that CBL may provide a useful means of connecting academic learning with authentic professional contexts. Originality/value: The study extends existing case-based learning research by providing discipline-specific empirical evidence from Facilities Management education in Sri Lanka, a developing-country context that remains underrepresented in the CBL literature. By examining students across multiple academic levels and comparing their perceptions of different CBL activities, the study provides context-sensitive insights for the design of practice-oriented FM curricula.

Availability and quality of housing have long been serious problems in Hong Kong over the years. It is now apparent that the rapidly increasing aging population (those over 65 years) seems to make the housing issue an even more serious one. As the demographic and social structures of the society continue to evolve, government’s housing policy should be reviewed and revised from time to time, accordingly, in order to satisfy the changing needs of the society. The main objective of this study is to explore the significant determinants of housing consumption of the ‘soon-to-retire’ group and suggest an explanation for their underlying dynamics. Based on a sample survey data, a cross-sectional regression model is employed to identify significant determinants that influence housing consumption of this group. Empirical results reveal that housing consumption of this group is influenced not only by market and demographic factors but also by the health status of the household. Heath status of the household, of this age group, is very important as this group is nearing their retirement. The empirical results further reveal that average household size and housing tenure as significant determinants of housing consumption of this study group. By introducing this new factor, we attempt to broaden our knowledge about the housing consumption of this less explored aspect of the housing market.