So we can check whether we are on the right track for meeting our goals to reduce greenhouse gases. Product Carbon Footprinting – a study on methodologies and … Polystyrene by J. Hidalgo-Crespo et al. This option actually has a negative carbon footprint, because the finished product is made from the outer bark of oak trees. The U.S. Department of Energy's Office of Scientific and Technical Information carbon footprint Calculating the carbon footprint of products Applying these 4 Rs wherever possible is a great way to reduce your carbon footprint. CO2-Bilanz – Wikipedia 2 Production accounts for 68% of food emissions, while transportation accounts for 5%. Polystyrene a solid thermoplastic is melted at high temperature to re-solidify for desired application, the expanded polystyrene is forty-five times the volume of … Carbon footprint. Reducing our Carbon Footprint Reducing our carbon footprint is just one important part of improving our overall sustainability. The polystyrene produced within the substrate is of high molecular weight. Dartmouth College Dartmouth Digital Commons Carbon Footprint