Damian's
annual carbon footprint (estimated)
Based loosely upon:
[cjd] Mark Lynas, "It's
Carbon Judgement Day", The
Guardian, 24 January 2007
Numbers have been roughly estimated and loosely rounded, so when I
write '=>' I mean 'approximately equals'...
Gas, electricity and car driving
CO2 emissions are based upon estimated household consumption, and
therefore include a 'divide by two' (i.e. to account for two adults in
the household - Damian and Alison)
Natural
Gas (@0.19kgCO2/kWh)
Assume ~400 hundred cubic feet (hcf) per year; of which
~150hcf water heating (all year round) and 250hcf space heating (mostly
winter months)
assume 1hcf = 31kWh => 13,000kWh/year household natural gas
consumption
13,000kWh/year (x0.19) = > 2,400 kgCO2/year
divide by 2 adults => 1,200
kgCO2/year/ddnb due to natural gas consumption, of which
approximately 450kg is due to water heating and 750kg is due to space
heating
Electricity
(@0.43kgCO2/kWh)
Assume ~2,700 kWh/year consumption x0.43 => 1,200kgCO2/year per
household
divide
by 2 adults => 600
kgCO2/year/ddnb due to electricity consumption
(made up of refrigeration, lighting etc.)
Car driving
(@0.2kgCO2/km)
Assume ~20,000
miles/year total over both cars => 32,000km =>
6,400kgCO2/year per household
divide by 2 adults => 3,200kgCO2/year/ddnb
due to car driving
Flights and general consumption
of 'stuff' are calculated on the basis of one person only
Flights
These figures are rough estimates, and include business flights
Assume flying is twice as efficient per passenger mile as driving
=> 0.1kgCO2/km
- Assume
one long haul round trip (e.g. SE Asia etc.) of ~30,000km every 3 years
=>10,000km/year or 1,000kgCO2/year
- Assume
one transatlantic round trip of ~15,000km each year =>
1,500kgCO2/year
- Assume one medium haul (EU) round trip totalling 3,000km
each year => 300kgCO2/year
- Assume two short haul (U.K.) round trips totalling 2,000km
each year => 200kgCO2/year
Total
for flights => 3,000kgCO2/year/ddnb
General
consumption of 'stuff' [cjd]
Based on a profile of "I'm
fairly thrifty, but buy new things when I need them and get most of my
food from supermarkets"
Total consumption
=> 2,000kgCO2/year/ddnb
The
grand total
Add up
the numbers above, and we get a grand
total of 10,000kgCO2/year/ddnb
According
to the 'Carbon Judgement Day' rating [cjd], this puts Damian into the
category of:
"D 9,000-12,000kg
You're an overconsumer. Sort it out now!"
Not so eco-friendly now, are we Mr. Bevan!
Still, at least I managed to avoid falling into one of the categories
of:
E 12,000-15,000kg Carbon criminal
F 15,000-18,000kg Tony Blair
G 18,000-21,000kg Typical American
H 21,000+ Jeremy Clarkson
I should hope not!
Now then, the breakdown into the various categories looks like the
following:
Which
gives an interesting indication of where the real savings are to be made...
Back to Alison and
Damian's home page
This
page was last updated
on
2007-03-24
