Atmospheric chemistry is the study of the chemical composition and reactions that occur in the Earth's atmosphere. It focuses on understanding how different gases, such as carbon dioxide and methane, interact with each other and with sunlight. These interactions can influence climate change, air quality, and weather patterns, making atmospheric chemistry crucial for environmental science. Researchers in atmospheric chemistry analyze pollutants and greenhouse gases to assess their impact on the environment and human health. By studying phenomena like ozone depletion and acid rain, scientists can develop strategies to mitigate harmful effects and promote a healthier atmosphere for future generations.