Bunch of Flowers from Holland

CO2e: 36.00 kg (24 days)

See: http://www.greenrationbook.org.uk/food/bunch-of-flowers-from-kenya/

Including the altitude effect on CO2 impact, Dutch CO2 emissions were about 5.8 times larger than Kenyan CO2A emissions (Table 1). Including the altitude effect (albeit tentatively) with other GHG to give estimates for GWP100A, the Dutch emissions were about 6.0 larger then the Kenyan ones”

Six times the Global Warming Potential of a bunch of flowers from Kenya gives 36.00 kg CO2e for a bunch of flowers from Holland. (Is this realistic??)

Boiling a litre of water

CO2e: 0.05kg (40 mins)

The AECB (http://www.aecb.net/forum/index.php?topic=1064.0) board quotes DEFRA CO2 figures for electricity:

“The correct figure is now 0.527kgCO2/kWh http://www.defra.gov.uk/environment/business/envrp/pdf/conversion-factors.pdf

However the originator of the topic says:
“My research shows that it will be approx 1kg but this is based on some very rough assumptions which aren’t sufficiently reputable and referenceable.”

Heating 1 kg of water by 80 degC is 80(degC) * 4.2(joules/degC/gm) * 1000 (gm) = 336,000 joules. = 0.336 megajoules

1kw/hr = 3600(sec) * 1000 (joules/sec) = 3.6 megajoules

This gives 0.527 * 0.336 / 3.6 kgCO2e = 0.05 kg.

If a litre of water is allowed to boil dry the heat reqiured is 1000(gm) * 2260 (joules/gm) = 2.26 megajoules

Unfreezing a litre of water requires 1000(gm) * 334 (joules/gm)= 0.334 megajoules

Anchor Steam Beer

CO2e: 0.43kg (7 hours)

Anchor Steam Beer at 1.91kg
(now revised – see below)

Agricultural CO2e 100g
530g  “Road Freight to London” (*0.21) 111g
200 gm glass (* 8.4) 1680g
530g  “Road Freight from London” (*0.03) 16g

Bunch of flowers from Kenya

CO2e: 6kg (4 days)

The precis report of Comparative Study of Cut Roses for the British Market Produced in Kenya and the Netherlands
“The production at Oserian [Kenya] and delivery to the World Flowers RDC of the functional unit of 12,000 cut rose stems incurs 53,000 MJ primary energy and emits 2,200 kg CO2 (without including any allowance for the altitude of emissions). 7,800 MJ (15%) is fossil.”

Cut rose stems we have measured weigh an average of 25 gm so 12,000 cut stems weigh approximately 300 kg

For long haul passenger transport, including a radiative forcing index of 2.0, we have 210 gm CO2e per passenger kilometer

At approximately 10 passengers+luggage per tonne, this would suggest 2.10 kg per tonne-kilometer for freight.
So about every 500 kms goods carried will create their own weight in CO2e.

But Adidas give a figure of 0.903 kg per tonne-kilometer
(See http://www.adidas-group.com/en/sustainability/environment/tackling_pollution/co2_emissions_from_transport_and_travel/default.asp)
Using a radiative forcing index of 2.0 this gives 1.806 kg per tonne-kilometer for CO2e. This implies that every 554 kms goods carried will create their own weight in CO2e.

Nairobi airport is 6800 km from London so an estimate of 300 kg air freighted to London is 3,684 kg CO2e (1,842 kg CO2 without RFI multiplier of 2.0).

7,800 Mj of fossil generated electricity at 0.1 Kg per MJ give 780 kg of CO2.

780 + 1,842 kgs =2,622 kgs CO2 . This seems to compare reasonably well with the 2,200 kg CO2 quoted in the World Flowers report.

This gives 780+3,684 =4,464 Kg of CO2e for 12,000 rose stems. This is 370 gm CO2e per rose stem.

Local transport, refridgeration and wasteage will increase this. 500 gm per stem seems reasonable.

A bunch of lowers from Kenya, say, 6.00 kg.

342 gm Beef steak

CO2e: 8.63 kg (5 days 18 hours)

Beef is 25.23 times its own weight in CO2e

1500g Flour

CO2e: 1.20 kg (19 hours)

6 Eggs

CO2e: 1.29 kg (21 hours)

750 gm Chicken

CO2e: 2.98 kg (2 days)

Poultry meat is 3.98 times its own weight in CO2e

350 gm Pork chops

CO2e: 2.54 kg (1 day 17 hours)

Pig meat is 7.25 its own weight in CO2e

454 gm Lamb chops

CO2e: 11.85 kg (7 days 22 hours)

Sheep meat is 26.10 times its own weight in CO2e