The Tanzania Alliance for Climate and Sustainable Society (TACSS) plays a pivotal role in advancing environmental sustainability and resilience across Tanzania. At its core, TACSS focuses on several key functions aimed at driving positive change. The alliance facilitates collaborative efforts between government, civil society, and private sector stakeholders to develop and implement effective climate action strategies. TACSS serves as a knowledge hub, conducting research, providing training, and disseminating information to build capacity and awareness on climate change mitigation and adaptation. The alliance actively engages in advocacy and policy dialogue to promote supportive frameworks and regulations for sustainable development. Through these concerted efforts, TACSS strives to catalyze transformative action towards a more climate-resilient and sustainable future for Tanzania.