15 largest ships pollute as much as all the cars in the world
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Re: 15 largest ships pollute as much as all the cars in the world
Yes its probably true, but yes there are qualifiers, while I don't have time to watch the video right now they're probably talking about sulphur emissions, not overall pollution, and certainly not pollution per ton/mile.
There was a recent thread in Misc that was along a similar tack.
I'll just take my chances with those salt water joys.
ARComment
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Re: 15 largest ships pollute as much as all the cars in the world
And at least 15 of them pass in front of my house every day, including the Maersk ships. Right now I'm looking at the MOL Motivator, 991' doing 18 knots.
and now here comes the Courageous Ace, 650' at 17 knots, looks like maybe a car transport.
and now the YM Hamburg out of Singapore. 850', 20 knots. This all within 15 minutes.Last edited by ron ll; 03-11-2014, 09:53 PM.Comment
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Re: 15 largest ships pollute as much as all the cars in the world
I'll just take my chances with those salt water joys.
ARComment
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Re: 15 largest ships pollute as much as all the cars in the world
If you just look at SO2 and particulate emissions it may well be true. No. 6 fuel oil has about 2% sulfur content. This is 20,000 ppm compared to a maximum sulfur content in US gasoline of 300 ppm. Having spent a lot of effort improving the sulfur removal in a turpentine distillation unit, 20,000 ppm is a $h!t-load of sulfur. Particulate generation is measure by the ash content, the inorganic stuff left when you burn the material. No. 6 fuel oil will be about 0.5% ash, or 5,000 ppm, compared to essentially zero for gasoline.
The utility companies deal with this with caustic scrubbers for the SO2 and/or electrostatic precipitators for the particulate. These are expensive to operate and a real PITA on dry land. The large scale of the utility boilers makes the expense more reasonable.
I have read that some areas require the ships to switch to cleaner fuels in port, basically diesel if I read it right.
Cheers,
BobbyComment
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Re: 15 largest ships pollute as much as all the cars in the world
It's easier to list what's prohibited from incineration.
http://laws-lois.justice.gc.ca/eng/r...e-40.html#h-55
That would only apply within Canadian territorial waters.Comment
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Re: 15 largest ships pollute as much as all the cars in the world
Well, THE way to look at this, IMHO, might be with a question: How much pollution will be created by mothballing these ships and transporting the commodities and goods by other methods?
I respectfully submit the term, "transport efficiency" for your Googling and Wiki-ing pleasure.
KevinThere are two kinds of boaters: those who have run aground, and those who lie about it.
Comment
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Re: 15 largest ships pollute as much as all the cars in the world
Well, THE way to look at this, IMHO, might be with a question: How much pollution will be created by mothballing these ships and transporting the commodities and goods by other methods?
I respectfully submit the term, "transport efficiency" for your Googling and Wiki-ing pleasure.
Kevin
Cheers,
BobbyComment
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Re: 15 largest ships pollute as much as all the cars in the world
And on Canadian ships. If you'd like to look up the regs for every other flag state, be my guest, I'd love to hear your results. (Not being sarcastic, I actually would be interested, I just don't have the time to do it myself.)I'll just take my chances with those salt water joys.
ARComment
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Re: 15 largest ships pollute as much as all the cars in the world
Well, THE way to look at this, IMHO, might be with a question: How much pollution will be created by mothballing these ships and transporting the commodities and goods by other methods?
I respectfully submit the term, "transport efficiency" for your Googling and Wiki-ing pleasure.
There is also the pollution and climate change impact of the creation of the ships in the first instance; those externalities have already been input into the climate system, with additional impacts associated with the creation of the new transport platforms to be input as well.
Is it a net win for the climate to trade the 1978 pickup for that new Prius when you only drive 25 miles per week or so?Comment
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Re: 15 largest ships pollute as much as all the cars in the world
Is it a net win for the climate to trade the 1978 pickup for that new Prius when you only drive 25 miles per week or so?Gerard>
Albuquerque, NM
Next election, vote against EVERY Republican, for EVERY office, at EVERY level. Be patriotic, save the country.Comment
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Re: 15 largest ships pollute as much as all the cars in the world
Eventually we will overrun ourselves, all 9 billion of us.
I have been on research vessels from all around the world. One vessel from Japan would every night,dump all garbage, in plastic bags, 10 or so, overboard.
We were a Seismic vessel, so no problem. To make issue of it would be "impolite".PaulFComment
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