Artificial Intelligence (AI) has emerged as a transformative tool in addressing climate change and promoting environmental sustainability. This paper reviews key applications of AI in areas such as climate modeling, resource management, environmental monitoring, and disaster prediction. Drawing from recent literature, it highlights benefits like enhanced predictive accuracy and resource efficiency, while addressing challenges including high energy consumption and data biases. Future directions emphasize green AI development and ethical governance to maximize AI's positive impact on sustainable development goals (SDGs).