Biogenic emissions refer to the release of gases or particles into the atmosphere by living organisms, such as plants, trees, and bacteria. These emissions can include volatile organic compounds, carbon monoxide, methane, and other gases that play a role in the Earth's atmospheric chemistry. Biogenic emissions are an important component of the global carbon cycle and can have significant impacts on air quality, climate change, and ecosystem health. Researchers study biogenic emissions to better understand their sources, composition, and effects on the environment, and to develop strategies for mitigating their impacts.