Climate change is considered one of the most significant global challenges facing humanity in the modern era. It directly and indirectly affects many aspects of life, including public health. Rising global temperatures and changes in weather patterns have contributed to the emergence of several health issues that threaten communities around the world. One of the major health impacts of climate change is the increase in heat-related illnesses such as heat exhaustion and heatstroke. In addition, respiratory diseases may worsen due to air pollution and higher concentrations of harmful gases in the atmosphere. Climate change can also increase the spread of infectious diseases transmitted by insects, such as malaria and dengue fever, as environmental conditions become more suitable for their reproduction. Climate change also affects food security and water availability, which may lead to malnutrition and diseases related to food shortages. Furthermore, climate-related natural disasters such as floods, droughts, and storms can cause significant physical and psychological health problems for affected populations. To address these challenges, governments and international organizations are developing strategies to reduce the effects of climate change and strengthen healthcare systems capable of responding to these risks. Efforts also focus on raising environmental awareness and encouraging societies to adopt environmentally friendly practices that reduce harmful emissions. In conclusion, climate change represents a serious threat to public health, requiring coordinated efforts at both local and global levels to mitigate its effects and protect human health and the environment.