A carbon footprint is a measure of the total amount of greenhouse gases that are emitted into the atmosphere as a result of human activities. It is typically measured in units of carbon dioxide equivalents (CO2e) and is used to assess the environmental impact of an individual, organization, or product. A carbon footprint can be calculated for a wide range of activities, including transportation, electricity generation, industrial processes, and deforestation. The goal of measuring a carbon footprint is to identify sources of greenhouse gas emissions and to take steps to reduce them in order to mitigate the effects of climate change.