Recent studies indicate that climate change is causing a rise in dengue fever cases globally, with estimates suggesting that nearly 20% of new dengue infections can be attributed to this phenomenon. Rising temperatures are facilitating the spread of pathogens, leading to an increase in mosquito populations that thrive in warmer conditions. Regions such as Nepal and Uttar Pradesh are experiencing surges in dengue cases, reflecting a trend that is echoed in places like Bangladesh and even the United States. As climate change continues to alter weather patterns, experts warn that the incidence of diseases such as dengue, chikungunya, and Zika could increase further, prompting urgent calls for action to address the underlying environmental factors contributing to the public health crisis.