The CAM Pathway, or Crassulacean Acid Metabolism Pathway, is a photosynthetic process used by some plants to adapt to arid environments. In this pathway, plants open their stomata at night to take in carbon dioxide, which is then stored as organic acids. During the day, the stomata close to reduce water loss, and the stored carbon dioxide is used for photosynthesis. This adaptation allows CAM plants, such as cacti and succulents, to thrive in dry conditions. By minimizing water loss while still capturing sunlight for energy, these plants can survive in habitats where other plants might struggle.