£5k Mercedes?

Craiglxviii

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Air travel is a big contributor to air pollution as well though isn't it ?

Massively complicated question. From the numbers I have seen (and dependent on how one defines "air pollution") all transportation activities account for 20-28%, while power generation alone is around 35%. Of that 28% air travel represents around 7%, with ~15% for road/ rail/ sea and the balance personal domestic transport. Industry adds in another 20% and the rest is split up across many other categories.
 
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PovertySpec

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Cruise ships make about 0.3 ton per mile at cruising speed... and that is burning marine distillate too, not diesel as we would know it.

Listen to the piece, it's not about marine distillate, people don't live in the sea :)

The big issue in places like Southampton and soon Greenwich isn't the output at cruising speed (obv, it's moored) it's the shore power diesel generators spewing health damaging amounts of pollution all over densely populated areas.
 

Craiglxviii

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Listen to the piece, it's not about marine distillate, people don't live in the sea :)

The big issue in places like Southampton and soon Greenwich isn't the output at cruising speed (obv, it's moored) it's the shore power diesel generators spewing health damaging amounts of pollution all over densely populated areas.

Well this gets more interesting. Cruise ships are now moving to IFEP which makes no distinction between power for propulsion and power generation. Queen Mary 2 is already at this point in tech- and she burns marine distillate. (And also she is the one at a quarter ton per mile, older ships are 2-3 times that!)

Biggest electrical load on a large cruise ship- lighting. A typical large cruise liner can have a standing 1.4MW of lighting load.
 

PovertySpec

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A typical large cruise liner can have a standing 1.4MW of lighting load.

All running off quayside gensets 'belching poison'

Fuel indeed for the green lobby and cash strapped local authorities.
 

Craiglxviii

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All running off quayside gensets 'belching poison'

Fuel indeed for the green lobby and cash strapped local authorities.

My point is that IFEP ships don't need to run off shore power... all their power lineup is there to produce leccy only. And for that they're about twice as efficient as hooking up to the mains.
 
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PovertySpec

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My point is that IFEP ships don't need to run off shore power...

Thanks for the insight.

The point of the article (again) and what's fuel for the green lobby (again) is that though they may not need to run off shore power (that's kind of obvious) they often do. Which is why .. diesel congestion charge oh, forget it :rolleyes:
 
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