Fiscal policy is crucial in promoting green and sustainable technologies, as governments can use taxation and spending to influence environmental innovation. By providing subsidies or tax credits for renewable energy, electric vehicles, and energy-efficient technologies, governments make sustainable options economically attractive. Conversely, imposing carbon taxes or reducing incentives for polluting industries discourages environmentally harmful practices. Public investment in clean technology research, eco-friendly infrastructure, and green innovation hubs further accelerates development. Through these measures, fiscal policy not only supports environmental sustainability but also fosters the growth of new industries, creates green jobs, and positions the economy for long-term technological leadership in sustainability.