Science denial refers to the rejection or dismissal of scientific consensus and evidence, often in favor of personal beliefs or misinformation. This phenomenon can occur in various fields, including climate change, vaccines, and evolution. Individuals may deny scientific findings due to cognitive biases, emotional responses, or distrust in authorities. The impact of science denial can be significant, leading to public health risks, environmental degradation, and hindered progress in addressing critical issues. Efforts to combat science denial often involve improving science communication, promoting critical thinking, and fostering trust in scientific institutions and experts, such as the World Health Organization and National Institutes of Health.