Drago
Legendary Member
- Location
- Suburban Poshshire
Tyres go well on then wood burner.
"A car's manufacture causes the same environmental impact as its lifetime use"
- Thread starter swee'pea99
- Start date
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Jody
Stubborn git
The 15 largest container ships create the same amount of CO2 per year as all the worlds cars combined. Maybe we should try and clean them up aswell as cars
twentysix by twentyfive
Clinging on tightly
- Location
- Over the Hill
Why go all the way to the canal Rocky? There's that drain in the gutter right outside for the oil. Saves one trip at least. Oh shoot - that would be the green option
Profpointy
Legendary Member
I've seen that said previously, but is it right? Doesn't sound that plausible to be honest
I've also heard it claimed that a huge percentage of the worlds energy was used to drive crushing machines in quarries and mines; again didn't sound very plausible.
Drago
Legendary Member
- Location
- Suburban Poshshire
Indeed, and we can do that by not rushing out to buy the latest fashionable iPhone/trainers/bicycle/headphones crap that we don't actually need. Its our rampant consumerism that keeps these vessels in business.
OP
OP
swee'pea99
Legendary Member
Wow!
John the Monkey
Frivolous Cyclist
- Location
- Crewe
Crime exists! Abolish the law!
How much "new" aluminium is used in bike manufacture and how much is recycled? Does alloying it reduce the recycling possibilities?
OP
OP
swee'pea99
Legendary Member
This has all been very interesting, and at times entertaining, but four pages in I don't feel any closer to that 'definitive answer'. The closest attempts are probably both on page 1, where greencareports claims:
...fully 75 percent of a car's lifetime carbon emissions stem from the fuel it burns, not its production. A further 19 percent of that is production and transportation of the fuel, leaving just six percent for the car's manufacture.
While The Guardian begs to differ:
The upshot is that – despite common claims to contrary – the embodied emissions of a car typically rival the exhaust pipe emissions over its entire lifetime. Indeed, for each mile driven, the emissions from the manufacture of a top-of-the-range Land Rover Discovery that ends up being scrapped after 100,000 miles may be as much as four times higher than the tailpipe emissions of a Citroen C1.
The discrepancy strikes me as striking. 6% v 75%, as against 'rival' - ie, 50/50, give or take.
You'd think estimates would be different....but not by several orders of magnitude.
I remain baffled. And curious.
...fully 75 percent of a car's lifetime carbon emissions stem from the fuel it burns, not its production. A further 19 percent of that is production and transportation of the fuel, leaving just six percent for the car's manufacture.
While The Guardian begs to differ:
The upshot is that – despite common claims to contrary – the embodied emissions of a car typically rival the exhaust pipe emissions over its entire lifetime. Indeed, for each mile driven, the emissions from the manufacture of a top-of-the-range Land Rover Discovery that ends up being scrapped after 100,000 miles may be as much as four times higher than the tailpipe emissions of a Citroen C1.
The discrepancy strikes me as striking. 6% v 75%, as against 'rival' - ie, 50/50, give or take.
You'd think estimates would be different....but not by several orders of magnitude.
I remain baffled. And curious.
Donger
Convoi Exceptionnel
- Location
- Quedgeley, Glos.
Did an interesting tour of the Toyota factory in Burnaston a couple of years back. I don't pretend to know the figures as to energy consumption etc, but I was very impressed by the place. The plant was barely visible, even from the front gate, with bunnies running around on grassy verges everywhere. I do recall being told that there is zero waste at the site .... absolutely everything (100% of waste) is re-cycled.
As a driver of one of their hybrids, I'd like to think my choice mitigates to some extent the rather high annual mileage I do by making it as clean as I can.
As a driver of one of their hybrids, I'd like to think my choice mitigates to some extent the rather high annual mileage I do by making it as clean as I can.
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Jody
Stubborn git
There are quite a few articles about this. The largest ship produces as much pollution as 50 million cars (there are only 750-800 million cars in the world) and creates 2000 times the amount of sulphur due to the poor fuel used.
There are currently 6,000 container ships sailing the seas.
http://www.industrytap.com/worlds-1...pollution-than-all-the-cars-in-the-world/8182
http://www.enfos.com/blog/2015/06/2...ntainer-ship-can-out-pollute-50-million-cars/
Profpointy
Legendary Member
It's rather non-specific about what is meant by "pollution" but given sulpher and heavy oil gets a mention it very much looks like he is NOT talking about CO2.
Profpointy
Legendary Member
Is that really so? Aren't aluminium smelters usually sited where it is easy and convenient to build hydro electric plants giving cheap (and coincidentaly renewable) electricity for the actual smelting.
classic33
Leg End Member
Figure of 6,000 seems a bit low. There's 16,900 bulk carriers at present with a further 500 on order.
jefmcg
Guru
Apparently not. https://en.wikipedia.org/wiki/List_of_aluminium_smelters I checked the Australian ones, gas, brown (the worst kind) coal for two, the Tomago one use 12% of the power in that entire state, which includes Sydney!, so that's going to come from a pool that includes brown coal, gas, hydro, solar and wind (at least).
This is one of the reasons that Australia has a higher per-capita carbon footprint than even the USA.
