Carbon Footprint - One strong reusable plastic bag equals:

21.51 kg CO2 equivalent   

109.2 km drive   
11.73 m3 of CO2 gas   

The carbon footprint is based on many factors that change, such as where the product is made, what fuels the energy system uses, how far it has to travel to get to its destination, etc. For this reason, the carbon footprint of each individual product varies. The figures given are an overall representation of the carbon footprint, provided to provide context on what is generally higher or lower, rather than individual calculations for your own individual situation.