Hi Guys, I am doing research on Carbon footprints etc for my company and would like someone to check my working on the following as the answer seems high.
What is the carbon footprint of a cardboard Tray used to display cosmetics?
Base this on production of 500 Trays.
1 Metric Ton of std display cardboard = 4100kWh to produce
1kWh (coal fired power station) = 970g Carbon Dioxide
1 Metric Ton of std Display Cardboard = 690 sheets
1 Cardboard tray = 2 sheets of cardboard
My working is as follows:
1 ton of cardboard = 4100kWh
4100kWh x 970g CO2 = 3,977Kg CO2
500 Trays = 1000 sheets = 1.45Ton of card
3,977Kg CO2 x 1.45T of card = 5,766.65Kg = 5.77Ton CO2
5.77Ton CO2/500 Trays = 11.53Kg CO2 per tray.
Just to put things into perspective the equivelant trays formed in High Impact Polystyrene produces 200g of CO2 per tray.
The above being based on findings from a study done by the Michigan state university.
What I don't understand is why cardboard appears to be more damaging to the environment than plastics yet conventional wisdom shows the opposite to be true.
Greatful for any help on this.