Purpose: We investigate how green transformational leadership (GTL) influences green innovative service behavior (GISB), particularly in the hospitality sector, which faces significant environmental challenges. Drawing from social identity theory (SIT), we introduce green organizational identity (GOI) as a mediating mechanism through which GTL fosters GISB. Furthermore, we propose a moderated mediation model whereby a green knowledge-sharing climate (GKSC) serves as a first-stage moderator to further understand how and when GTL fosters GISB through GOI.Design/methodology/approach: We employed a multi-study design (i.e. two independent studies across China) to test the hypothesized relationships. Study 1 involved full-time employees from the service industry in China, including healthcare, telecommunication, and insurance sectors (N = 313). Study 2 employed a time-lagged dyadic design, collecting responses from employees and their managers at three different time points in the hospitality sector (N = 419).Findings: In Study 1, the simple mediation results demonstrate that GTL positively influences GISB through the mediating role of GOI. Moreover, in Study 2, the moderating effect of GKSC was supported, showing that in organizations with strong green knowledge-sharing climate, the indirect effect of GTL on GISB via GOI is amplified.Originality/value: In our work, we address a critical gap in the literature by identifying both the mechanisms and contextual factors that explain how GTL influences GISB. By introducing GOI as a mediator and GKSC as a first-stage moderator, the study advances understanding of how leadership, organizational identity, and a green-supportive climate interact to promote eco-friendly innovation in service organizations. This contributes both theoretically and practically to the development of effective strategies for advancing green initiatives in the service sector.

Aim: This article was meant to review the current status and limitations of treating municipal solid waste (MSW) by the developing countries with a case study from Peshawar-Pakistan. Methodology and Results: The city is divided into 4 towns and used a stratified sampling and survey to inspect MSW management from collection to final disposal. The results show food contributes to 14.3% of the total waste, followed by plastic waste 4%, paper, 2.7%, glass 1.2%, wood 1.1%, and metals/rubber 0.6%. Conclusion, significance, and impact study: About 60% of the wastes at collection points make the air difficult for breathing. There are several treatment options for the sustainable management of MSW, including composting, incineration, gasification, pyrolysis, biological treatment, and recycling. The developed countries had strictly imposed regulations to increase waste recycling and material recovery. In contrast, in the developing countries, the lack of proper legislation, planning, and awareness regarding waste reduction has worsened the MSW related problems. In this article, the essential steps needed in formulating the strategy for sustainable MSW management and assessment in terms of sustainability in the developing countries have been considered.