The accelerating climate crisis has intensified the need for innovative, equitable, and sustainable solutions capable of addressing environmental degradation, resource insecurity, and social vulnerability on a global scale. As governments, institutions, industries, and communities pursue pathways toward decarbonization and resilience, artificial intelligence (AI) has emerged as a powerful technological force with the potential to transform climate governance, environmental monitoring, and sustainability planning. However, alongside these opportunities come growing concerns regarding environmental footprints, governance failures, digital inequality, ethical accountability, and the concentration of technological power. Responsible AI for Climate Action: Governance, Justice, and Sustainable Transitions critically examines the evolving relationship between AI and climate action through the lenses of responsibility, sustainability, governance, and justice. While much of the current discourse emphasizes AI as a climate solution, this book intentionally expands the conversation by exploring both the promises and the risks associated with AI deployment within environmental systems. Covering topics such as carbon accounting, energy awareness, and international protection law, this book is an excellent resource for researchers, policymakers, legal scholars, environmental practitioners, sustainability professionals, graduate and postgraduate students, technology developers, and more.