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This study examines the GHRM practices and the transformational leadership specific to environmental sus-tainability of Pakistan's dairy industry. It also investigates the mediating role of pro-environmental behaviour in the relationship of GHRM practices, The environmental-specific transformational leadership, and sustainable behavior. Additionally, the study examines the moderating role of the pro-environmental attitude between GHRM practices and The environmental-specific transformational leadership. The target population consists of employees working in dairy organizations of Pakistan. A simple random sampling technique was used for data collection. A survey questionnaire method was used to collect data; after data screening a total of 430 responses were subjected to SEM for analysis. The findings indicated that the GHRM practices play a significant role in improving employee environmental and sustainable behavior. The environmental-specific transformational leadership positively affects the pro-environmental behaviour of employees, but its impact on sustainable per-formance is insignificant. In addition, GHRM practices and environmental-specific transformational leadership have been shown to indirectly contribute to sustainable performance through environmental behavior. The pro -environmental attitude moderates the effect of GHRM practices and environmental-specific transformational leadership on pro-environmental behavior, and pro-environmental behavior leads to sustainable performance. This study is one of the rare attempts to examine the integrated impact of GHRM practices and environmental -specific transformational leadership on pro-environmental behavior and sustainable performance in the domain of environmental management. It explicitly offers insights into the literature by developing a mechanism to improve sustainable performance through GHRM practices and environmental-specific transformational lead-ership in the dairy industry. The findings of this

Emission benefits of transit buses depend on ridership. Declines in ridership caused by COVID-19 leads uncertainty about the emission reduction capacity of buses. This paper provides a method framework for analyzing spatio-temporal emission patterns of buses in combination with real-time ridership and potential emission changes in the post-COVID-19 future. Based on GPS trajectory and Smart Card data of 2056 buses from 278 routes covering 1.5 million ridership in Qingdao, China, spatio-temporal emissions characteristics of buses are studied. 7589 taxis with 0.2 million passengers’ trips are used for acquiring private cars’ emissions to evaluate the emissions difference between buses and cars. Empirical results show that the average difference between buses and cars with 2 persons can reach up to 117 g/km-person during 7:00–8:59 and 115 g/km-person during 17:00–18:59. However, buses have various emission benefits around the city at different periods. A double increase in emissions during non-rush hours can be observed compared with rush hours. 224 online survey data are used to study the potential ridership reduction trend in post-COVID-19. Results show that 56.3% of respondents would decrease the usage of buses in the post-COVID-19 future. Based on this figure, our analysis shows that per kilometer-person emissions of buses are higher than cars during non-rush hours, however, still lower than cars during rush hours. We conclude that when ridership reduces by more than 40%, buses cannot be “greener” travel modal than cars as before. Finally, several feasible policies are suggested for this potential challenge. Our study provides convincing evidence for understanding the emission patterns of buses, to support better buses investment decisions and promotion on eco-friendly public transport service in the post-COVID-19 future.