What is actually one tonne of CO2?

CO2 (carbon dioxide) is an achromatic, non flammable, inodorous and nontoxic gas, that makes up to about 0,003% of the earth's atmosphere.

How can one imagine a tonne of this gas?

To illustrate graphically, one tonne of CO2 correlates to the volume of a 10 meter wide, 25 meter long and 2 meter deep swimming pool!

The average family home generates 6 tonnes of CO2 per year. It is estimated that approximately 30% of our home energy is wasted, which means we could save 2 tonnes of CO2. Here's a few things you can do to reduce your carbon footprint.

• Eat meat-free meals every other day. Vegetarian food requires much less energy to produce.
CO2 savings = 487 pounds

• Park the car for 60 days this year. Walk, cycle, or take public transit.

CO2 savings = 917 pounds

• Switch from hot to warm or cold water for every load of laundry.

CO2 savings = 600 pounds

Total = 2,004 pounds (one tonne)

• Switch two standard light bulbs to more efficient fluorescent bulbs.

CO2 savings = 1,000 pounds

• Replace the current shower head with a low-flow model.

CO2 savings = 300 pounds

• Turn the thermostat down two degrees for one year.

CO2 savings = 500 pounds

• Cut vehicle fuel use by 10 gallons in 2007.

CO2 savings = 200 pounds

Total = 2,000 pounds (one tonne)

• Replace the 20-year-old fridge with an energy-saver model.

CO2 savings = 3,000 pounds

• Send out one fewer 30-gallon bag of garbage per week.

CO2 savings = 300 pounds

• Leave the car at home two days per week this year.

CO2 savings = 1,590 pounds

• Recycle aluminum cans, glass bottles, plastic, cardboard and newspapers.

CO2 savings = 850 pounds

Total = 5,740 pounds (almost three tonnes!)