A carbon footprint measures the total amount of greenhouse gases, particularly carbon dioxide, emitted directly or indirectly by an individual, organization, or product. It is usually expressed in terms of carbon dioxide equivalents (CO2e) to account for the different global warming potentials of various gases. Understanding your carbon footprint can help identify ways to reduce emissions, such as using energy-efficient appliances, driving less, or choosing sustainable products. By lowering our carbon footprints, we can contribute to mitigating climate change and protecting the environment for future generations.