This policy brief examines the impact of climate change on mental health and psychosocial well-being. It highlights how climate change exacerbates various social and economic determinants of mental health, such as air quality, water scarcity, food insecurity, and poverty. The report identifies vulnerable groups, including individuals with pre-existing mental health conditions, and underscores the urgent need for integrating mental health support within climate change policies. The World Health Organization recommends five key strategies to address these issues, emphasizing multisectoral approaches and increased funding. The brief aims to raise awareness among policymakers, public health officials, and researchers about the growing mental health challenges linked to climate change.