Public policy plays a crucial role in addressing climate change by setting legal frameworks, allocating resources, and shaping societal behaviors aimed at mitigating environmental impacts. Through policies such as regulations, incentives for renewable energy, and investment in sustainable infrastructure, governments can reduce greenhouse gas emissions and promote sustainability. Furthermore, effective public policy encourages public and private sectors to collaborate in innovation and technological advancement, fostering an adaptive response to climate challenges. The success of these policies often hinges on public support and international cooperation.