Greenhouse gas emission from activities in the built environment is increasing exponentially due to increase in building operations. This study aims at determining factors that affect adoption of Green Building Technologies that normally reduce greenhouse gas emissions. To elicit relevant information, online structured questionnaire forms were administered on practitioners who have been involved in green building development in Nigeria. Mean score ranking was adopted in ranking the barriers to green building technologies, while discriminant analysis was performed to examine how organizations groups (client, consulting, contracting, academia) were distinguished on the barrier factors identified. Findings revealed that, out of the 23 barrier factors considered in this research, lack of institutions to formulate policies and set guidelines (mean score - 4.5) ranked 1st as barrier to adoption of green building technologies in Nigeria. This is closely followed by lack of information about green products (4.0), low level of awareness about sustainability issues (4.0), human resource and client knowledge, lack of knowledge about green building technologies, high cost of green products, while unavailability of sustainable materials and products ranked the lowest (2.7). Only nine factors at 0.05 level of significance entered the discriminant analysis model and emerged as variables with the most significant power in differentiating the organization groupings on the basis of perceived barriers to adoption of green building technologies. The study recommends that there should be strong political will from government, to establish institutions that formulate policies on green building technologies.Keywords: Barriers, Green Building, Green Building Technologies.

Accidents are common problems on construction sites globally. The occurrence of these accidents usually leads to loss of time and productivity of site personnel, payments for treatment of the injured and burial expenses for the dead. Previous studies identified poor communication of information on Health and Safety as one of the major causes of accidents on construction sites. This study examined and analyzed the strategies for communication. Mean and standard deviations were used to analyze the strategies. The opinions of supervisors and operatives were tested through an independent t-test and Spearman’s rank correlation. Findings revealed project briefings, operating procedures, and safety manuals as the most frequently used communication strategies. No significant differences exist between the two groups of respondents in their rankings. The correlation coefficient revealed a positive relationship. In other words, respondents concurred in their opinions regarding these communication strategies. This paper, therefore, recommends the adoption of significant strategies identified in this study. In addition, future research can be conducted in other countries in order to explore the research area globally.