Carbon footprint refers to the total amount of greenhouse gases, primarily carbon dioxide, produced by human activities such as transportation, energy use, and food production. It is a measure of the environmental impact of these activities and their contribution to climate change. Carbon footprint is typically measured in units of tonnes or kilograms of carbon dioxide equivalent per person over a specific time period. Individuals, organizations, and nations can calculate their carbon footprint and take steps to reduce it through various means, such as using renewable energy, reducing waste, and adopting sustainable practices. By reducing carbon footprints, we can mitigate the effects of climate change and promote a healthier planet.