The term "carbon footprint" refers to the total amount of greenhouse gas emissions, specifically carbon dioxide (CO2), that are generated by human activities. It is a measure of an individual's or organization's impact on climate change and represents the amount of pollution caused per unit time, usually calculated in units of CO2-equivalents. The size of one's carbon footprint depends on factors such as energy consumption, transportation choices, dietary habits, and waste production. Reducing one's carbon footprint is an important step towards mitigating climate change and promoting sustainable living practices.