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  1. #51
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    Default Re: Biggest polluter of our seas


  2. #52
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    Default Re: Biggest polluter of our seas

    Quote Originally Posted by Hydrozoan View Post
    In fairness, the international airline sector also escaped due attention for a time, too, because GHG accounting was done on a national basis and both ‘fell into the cracks’. I believe that together their global GHG emissions are about on a par with Germany’s total emissions - but growing very fast. We inevitably tend - in all areas - to get to a point environmentally where the easy fixes get done and further reducing impacts produces others, unforeseen and unintended. I’m not convinced that technological changes will allow us (and our descendants, particularly) to avoid actually reversing to some extent the trends to ever-greater international tourism and trade, but perhaps I’m too pessimistic.
    I agree and I don’t think you are pessimistic. We just have to move our whole civilisation off chemical fuels.

  3. #53
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    Default Re: Biggest polluter of our seas

    Quote Originally Posted by Minn View Post
    Antifouling paint particles are not going to do the local sea water creatures any good. When dry docking we collect the residue for reprocessing. If your friend’s customers include Inchcapes Gib office I’m probably a customer at one remove but not for scrubbing antifouling.
    These guys.

    http://www.neptunemarine.gi/

  4. #54
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    Default Re: Biggest polluter of our seas

    Yup; used them. No problems.

  5. #55
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    Default Re: Biggest polluter of our seas

    Quote Originally Posted by Minn View Post
    Yup; used them. No problems.
    I know a few of their skippers too who are of the 'work hard, play hard' generation.

  6. #56
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    Default Re: Biggest polluter of our seas

    Quote Originally Posted by dom View Post
    May I ask for a quick view on a couple of points as and when you have time:

    1. What contribution to you think the AP Moller Maersk bio boats make to this debate? (the so-called Triple-E ocean vessels)
    https://twitter.com/Maersk/status/11...961408/video/1

    2. You mention nuclear, and the US Navy has long been looking for ways to extract CO2 from seawater and then connect the carbon into longer hydrocarbon chains to fuel its jets, fast patrol vessels, etc. The goal is autonomy, not cheap fuel.

    At the moment the cost of such artificially created hydrocarbon chains is (I think) about 2x the cost of mineral oil based fuel, but it's falling slowly.

    The potential for these industries seems vast, or maybe not?
    https://www.smithsonianmag.com/innov...tch-180953623/

    Edit: and IF fusion power is ever commercialised, this type of activity opens the door to active carbon reversal?
    I am going to be miserable again! I hate «*biofuels*» because I have seen the devastation wrought by palm oil monoculture in SE Asia. How many orangutans died to fuel that triple E? So I say AP Moller-Maersk Line are just greenwashing again.

    I like the Smithsonian article. But I fancy we will get there with wind and solar.

    As a footnote, Greta Thunberg got from Southampton to New York under sail in 14 days. That’s pretty good going. Granted she was on an IMOCA 60 iirc but it shows a path that we could choose to go down.
    Last edited by Kukri; 02-10-19 at 12:04.

  7. #57
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    406

    Default Re: Biggest polluter of our seas

    Quote Originally Posted by Minn View Post

    I like the Smithsonian article. But I fancy we will get there with wind and solar.
    Wind and solar are fine if you have the deck space of a tanker or bulker, but there are few options on box ships. I talked to the guys at Windship and even they can't see how it would work. They also see it as wind assist, rather than wind power. And as much as I'd like to see it, I'm not sure how well wind/solar could work in today's just-in-time supply chains.

  8. #58
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    Default Re: Biggest polluter of our seas

    Quote Originally Posted by newtothis View Post
    Wind and solar are fine if you have the deck space of a tanker or bulker, but there are few options on box ships. I talked to the guys at Windship and even they can't see how it would work. They also see it as wind assist, rather than wind power. And as much as I'd like to see it, I'm not sure how well wind/solar could work in today's just-in-time supply chains.
    I agree.

    We are not going to have the box ships of today.

    We are not going to have just in time supply chains.

    We may not have aeroplanes at all.

    The World will be very different.

    But that’s a small price to pay. Consider the alternatives.

  9. #59
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    Default Re: Biggest polluter of our seas

    Quote Originally Posted by Minn View Post
    ... ultimately I think we will be back to wind and solar.
    I once suggested that East London’s sewage sludge might one day be shipped to East Anglia for utilisation in agriculture, as a ‘higher’ use than incineration with energy recovery. More fancifully, I even wondered about sail power, thinking not only of the barge trade but of London’s coal once being carried by sea - with IIRC urine for fulling being carried in the reverse direction.

    But I imagine that you foresee wind for deep water rather than coastal shipping?

  10. #60
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    Default Re: Biggest polluter of our seas

    I recall chatting, years ago, with the late TK Boesen, founder of the chartering company of that name, and he mentioned that his first ever fixture as a young broker was a sailing galeass with eight tons of hay. I remember seeing the Cambria under sail and down to her gunwales with cargo. Coastal sail is not that far away in time.

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