Product Carbon Footprint is More than Carbon Dioxide CO2 Emissions The term "carbon footprint" refers to a measure that considers not only emissions of carbon dioxide but also emissions of other greenhouse gases. The term "carbon footprint" comes from "carbon dioxide and other greenhouse gases."The effects of each type of greenhouse gas on the climate are measured in terms of how much CO2 they are "equivalent" to producing. This is due to different greenhouse gases' varying capacities to contribute to…