Even though social responsibility (SR) has been widely discussed as a business concept, it is still not being effectively implemented within mega-construction projects due to a range of barriers. Overcoming these barriers requires detailed information, however, there is a lack of research on the barriers to SR implementation within mega-construction projects, particularly in developing countries like the Kingdom of Saudi Arabia (KSA). This study thus aims to investigate the critical barriers to SR implementation with reference to mega-construction projects in the KSA. Eleven barriers were identified from a comprehensive literature review and interviews with experts. These barriers were examined in more detail using a questionnaire survey on two current mega-construction projects in the KSA. There were no differences in the ranking of barriers between the two projects with the 136 respondents identifying the top seven SR barriers as being: (i) additional costs; (ii) lack of awareness and knowledge; (iii) lack of guidelines and coherent strategy; (iv) lack of stakeholder communication; (v) lack of law enforcement; (vi) lack of training; and (vii) unclear project requirements. The findings of this study not only contribute to deeper understanding of the critical SR implementation barriers, but could also encourage industry practitioners and stakeholders to improve SR activities for more effective SR implementation. Moreover, identification and ranking of the critical barriers allows decision-makers to prioritize and develop effective strategies to tackle them at both project and sector scale. Future studies should investigate the interrelationship between the critical barriers and their impact on SR implementation

In the coming years, climate change is predicted to impact irrigation water demand considerably, particularly in semi-arid regions. The aim of this research is to investigate the expected adverse impacts of climate change on water irrigation management in Saudi Arabia. We focus on the influence of climate change on irrigation water requirements in the Al Quassim (97,408 ha) region. Different climate models were used for the intermediate emission SSP2-4.5 and the high emission SSP5-8.5 Coupled Model Intercomparison Project Phase 6 (CMIP6) scenarios. The FAO-CROPWAT 8.0 model was used to calculate reference evapotranspiration (ETo) using weather data from 13 stations from 1991 to 2020 and for both the SSP2-4.5 and SSP5-8.5 scenarios for the 2040s, 2060s, 2080s, and 2100s. The findings indicated that, for the 2100s, the SSP2-4.5 and SSP5-8.5 scenarios forecast annual average ETo increases of 0.35 mm/d (6%) and 0.7 mm/d (12.0%), respectively. Net irrigation water requirement (NIWR) and growth of irrigation water requirement (GIWR) for the main crops in the Al Quassim region were assessed for the current, SSP2-4.5, and SSP5-8.5 scenarios. For SSP5-8.5, the GIWR for the 2040s, 2060s, 2080s, and 2100s are expected to increase by 2.7, 6.5, 8.5, and 12.4%, respectively, compared to the current scenario (1584.7 million m3). As a result, there will be higher deficits in 2100 under SSP5-8.5 for major crops, with deficits of 15.1%, 10.7%, 8.3%, 13.9%, and 10.7% in the crop areas of wheat, clover, maize, other vegetables, and dates, respectively. Optimal irrigation planning, crop pattern selection, and modern irrigation technologies, combined with the proposed agroecological zones and NIWR values, can support water resources management. The findings can assist managers and policymakers in better identifying adaptation strategies for areas with similar climates.

The construction industry plays a vital role in every economy by contributing substantially to the national gross domestic product (GDP). Despite the significance of the industry, construction is often criticized for adversely impacting society and the environment through the nature of its work. Managing societal and environmental impacts are at the heart of corporate social responsibility (CSR) which is a critical factor for achieving long-term competitiveness. CSR has been adopted by many industries to address the negative impacts that result from their operations. Research in CSR within the construction industry is limited and still in its infancy, especially in the Kingdom of Saudi Arabia (KSA) where there is a negligible uptake of CSR activities and a lack of strategies and guidelines. The key question here is why the construction industry in KSA has not fully embraced the concept of CSR. This article presents the results of a literature study undertaken to develop an understanding of the reasons that militate against the implementation of CSR in general, and specifically in construction within KSA. The paper adopts a structured approach to analyze materials published on CSR, in general, and how it has been applied in the construction sector, including KSA. The analysis indicates that there are critical factors that have hampered the fulfillment of CSR requirements in construction. A lack of awareness and knowledge is ranked as the greatest barrier, and the lack of a practical and theoretical framework to examine the level of CSR implementation closely follows in tow. The analysis suggests that CSR within KSA is currently at a basic level and focused on philanthropic activities. It also indicates that there is a need to go beyond this basic level by developing an appropriate framework to assist KSA construction companies in integrating CSR fully into their business practice.

The construction industry is a vital part of every nation’s economy. Construction activities influence the social, environmental, and economic aspects of sustainability. There are so many barriers to sustainable construction and demolition waste management (C&DWM). This study aims to identify barriers for effective sustainable C&DWM in developed and developing countries. To achieve the objective, 11 barriers have been selected and identified based on an excessive and comprehensive literature review, and then reviewed by experts. These reviewed barriers were further examined by various experts within different organizations using a questionnaire survey. Ranking of the barriers was carried out using the Relative Importance Index (RI), and the results were statistically analyzed using Statistical Package for Social Sciences (SPSS). Practical solutions were proposed to overcome the identified barriers. The overall ranking of barriers by RI indicates that insufficient attention paid to C&DWM, lack of law enforcement, lack of regulation, and financial constraints represent the four major barriers to sustainable C&DWM in these countries. The findings of this study and the proposed solutions are enablers for decision-makers to develop effective strategies to tackle construction and demolition wastes in sustainable manners.

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