A carbon footprint is a measure of the total amount of greenhouse gases that are emitted into the atmosphere as a result of an individual's or organization's activities. These emissions are typically measured in terms of the amount of carbon dioxide equivalents (CO2e) produced. The main sources of carbon emissions are the burning of fossil fuels for energy, transportation, industrial processes, and deforestation. A carbon footprint can be calculated for an individual, a business, a product, or an entire country. The goal of measuring a carbon footprint is to understand the impact of an individual or organization on the environment and to identify areas where emissions can be reduced.