[Debunked] A liner or freighter pollutes as much as 1 million cars...and 1000 tractors? Really ?

[Spica.57]

Very easy: use the "attachments" function below the message writing window ...

Oops not seen
And There you go

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[Christophe]

Ok thank you, bin the journalists were very good! A factor error of 100 is crazy!

If an article had claimed that the hourly minimum wage increased to 10 cents, everyone would have seen it immediately! It is exactly the same error factor!

This is to say how people reason when it comes to pollution ...

Such an error deserves a RIGHT OF REPLY from readers eh!

It is a serious journalistic error: when I know the subject I see the errors, when I do not know I swallow them ...

Should find the WWF Oxfam study ... cited in source ...

ps: I put the images in the right orientation ... easier to read!

[Spica.57]

As said above I have not yet managed to find the article

[Christophe]

Looking at it more closely and if we speak in TONNE USEFUL (which seems coherent since the explanation speaks of FRET) displaced I think that the error does not come from the km ... but from the kg of CO2 ... which are actually GRAMS!

The values ​​of the article are therefore grams of CO2!

And in this case, the car exceeds the plane with 800 to 1000 g / Tonne.km, i.e. 10 times more than a truck (it is not possible that the individual car is in the same order of magnitude as a truck of 40 tons "useful") and 80 times more than a boat!

The private car is therefore the most polluting means of transport in the world * (because it does not have the energy optimizations available to an aircraft ... in particular the optimized occupancy and load rate before each flight)

* with the 2 large cube motorcycles ...

[izentrop]

You can redo the calculations with the data from Ademe https://www.ademe.fr/sites/default/file ... rteurs.pdf

86275_7715 guide-information-co2-transporteurs.pdf

(6.88 million) Downloaded times 276

[Christophe]

Uh, didn't they do the comparative calculations themselves? they are paid for right?

Otherwise, it's a good document, full of good numbers, and this table is very interesting for motorists who vomit on airplanes:

Consommation_avion.gif (42.87 KiB) Consulted 3751 times

Yes, a plane, with more than 100 seats, transports you to 700-900 km / h with a consumption per passenger of the order of 4L / 100 ...

There is no picture: the car (in its current design) is a daube (a scam?) Energetic!

ps: a Cessna (and equivalent) does not consume that much per passenger per km (if the 4 seats are occupied) ... See this topic: new-transport / diesel-en-Aviation legere-and-Ulm-Dieselis-gazaile-t2250.html (from the memory the Gazaille, 2 places, feels the 2L / 100.passager !! To check on this subject ...)

And the ATRs (42 and 72) are appreciated for their low consumption / maintenance load ...

reps: interesting variations and passages by mini in columns> 100 places

[izentrop]

and for CO2 it is the following table about 1 to 7 kg / t.km according to number of passengers and distance

co2avion.gif (105.81 KiB) Consulted 3743 times

[Christophe]

Well, let's peel (the yellow vests will wait a bit ...):

Take the value of 4L / 100km.

1 passenger is how much in aviation? 80kg? Take 100 kg with luggage.

1 useful ton therefore consumes 40L / 100 km ... and it will emit (see https://www.econologie.com/emissions-co ... el-ou-gpl/) 40 * 2.45 kg (CO2 / L of kerosene) = 98 kg of CO2 or 980 g / km

Everything is good: the orders of magnitude are there with my calculations ( and Science et Avenir is in the cabbages, it is g many not kg which it is necessary to read and it is a pity that the car does not appear * ) ...the minimum wage with the same error would therefore be 1 centime euro / h !

And the car pollutes more than the plane (my hypotheses were quite favorable for the car with 150 kg of payload..this ADEME document will surely have a fairer figure about the individual car)

* in addition if we wanted to nitpick about the payload of cars, we should not count the weight of the driver since it is essential for the advancement of the car (= it is part of the car: when I take my car for shopping, and only races, the payload these are the races ...), are the pilots and flight personnel taken into account as a passenger on the calculations of the planes? Ok good, I'm going out!

[izentrop]

Must calculate a little for the maritime.
For example page 62
Bulk carrier Capesize - Over 127 tonnes deadweight 500 tonnes Heavy fuel oil: 79 kg / km
and 3,58 kg of CO2 / kg of heavy fuel oil (page 61)
gives approximately 0.00358 kg of CO2 / t.km transported

[Christophe]

gives approximately 0.00358 kg of CO2 / t.km transported

Either 3,6 g CO2 / T.km (vs 10 g CO2 / T.km according to WWF) where my car is 800 g CO2 / T.km ... or a factor of ... 220 !!

So if I was as dishonest as those who spread bad lobbies about cars, I could write an article saying: Your car pollutes 220 times more CO2 than large boats!

Ah but to say this is anti yellow vests! Okay this time I'm going to join them, I hope I'm not going to get hit!

ps: you took an oil tanker, it's like bulk carriers, the payload is more important, you should take a cargo ship ... because the races you have in your trunk of your car, it's the same type of goods ...