While global climate efforts are vital, national governance plays a key role in driving low-carbon, climate-resilient futures. Achieving sustainable development requires coordinated action across all sectors and levels—from local to global. In this critical decade, nations must lead with bold, integrated strategies that strengthen resilience, support adaptation, and safeguard communities and ecosystems. Education, innovation, and technology must reshape both mindsets and systems. Climate adaptation is urgent and essential. Especially for the Global South, an inclusive approach linking climate and economic development is vital. Visionary leadership must ensure that climate action fosters sustainability, equity, and shared human progress.