
A fair few summers ago, maybe back in 2004, I toured the UK festivals with some carbon footprint calculator courtesy of the Centre for Alternative Technology.
Because of the ways my mind work, numbers stick in my head, and I still recall most of the figures. A return flight to Sydney (27,000 miles) has the equivalent impact of about 20 tonnes of Carbon Dioxide, what with radiative forcing and all.
The Resurgance Carbon Calculator still reckons this is so, and yet the current CAT calculator now reckons I can fly to Oz for only 5 tonnes?
British Airways beat that calculating the distance at 21,000 miles and the impact at the flight at 3.8 tonnes of carbon dioxide. I guess they ignore the forcing effect, and all.
Better yet the last email I have seen on the subject, from a group called think before you fly, tried to make these numbers real to people, and suggested that by turning off your central heating for 3 years, I could balance out such a flight. I reckon this works out at about 1.5 tonnes of Carbon Dioxide.
So if I wait long enough perhaps the refined technology of the calculator will make the problem go away, and I can be lazing on a guilt free beach by tea time?
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