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Climate Change - The Facts

Discussion in 'General Chit Chat' started by Anon04576, Apr 18, 2019.

  1. oss
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    oss Somewhere Staff Member

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  2. oss
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    oss Somewhere Staff Member

    The article in the express is more or less accurate but as Max has pointed out has nothing to do with climate change.

    When the Sun formed it was much much cooler than it is now, as it ages it will get hotter and hotter, we are talking hundreds of millions of years, we are not talking two or three hundred years.

    Why does it get hotter, basically because to maintain its volume it has to burn its fuel more quickly, in Five billion years the sun will very rapidly expand and use up its remaining fuel burning through helium and other heavier elements until the fusion by products hit Iron at which point the star is dead.

    The reason it expands is because of the gas law and the fact that the fusion temperature has increased dramatically for each step up the periodic table, the star ends up like an onion with layers of ever heavier elements being fused.

    And just for info I studied Astronomy at Glasgow University in the late 1970s and I still know a fair bit about it.

    I have a feeling that you are one of those that believe the earth is 6000 years old.
    Last edited: May 13, 2019
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  3. Markham
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    Markham Guest

    You want to save the planet - stop posting your online inanities!

    According to Mike Hazas, a researcher at Lancaster University, quoted in The Times, "streaming a two-hour high-definition film on Netflix equates to boiling over 10 kettles of water". That is more than 10 KWh of electricity. His report also claims that by 2030 Britain's internet usage would need six dedicated nuclear power stations.
  4. bigmac
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    bigmac Well-Known Member Trusted Member

    that dont make sense.
  5. KeithAngel
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    KeithAngel 2063 Lifetime Member

    he rarely does:lol::lol::lol:
  6. oss
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    oss Somewhere Staff Member

    I can't confirm or deny the numbers, but just for starters :-

    Storage Farm
    Server CPU
    Network Infrastructure at Storage Farm
    Network Switching through many internet routers
    Transmission over fibre
    Your ISP's infrastructure
    Your Router
    Your Network
    Your TV

    10Kwh seems a little high but it is likely quite high, how these services make money I don't know.

    You can't even assume that it could save a little through multicast as you play the movie on demand with your own start and end time.
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  7. oss
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    oss Somewhere Staff Member

    It doesn't take an hour to boil one kettle, more like 3 minutes, so it won't be 10Kwh but more like a 1/20th of that.
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  8. oss
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    oss Somewhere Staff Member

    The internet is one of the largest consumers of electric power in the world.
  9. Markham
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    Markham Guest

    It does and it's a direct quote from the scientist involved as reported by The Times. What he is saying is that the amount of electricity required to view a two hour high-definition movie streamed by Netflix (or YouTube or Amazon etc) is equivalent to boiling just over 10 kettles of water, which would make about sixty cups of tea.
  10. Markham
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    Markham Guest

    You're probably right, Jim, I merely quoted from the Times article and given that the scientist involved is a researcher in sustainable computing, I assumed he knows what he's on about :);. Google tells me that, on average, electric kettles are rated at between 1200 and 1800 Watts. Our current kettle, made by Krups and boils 1.5 litres in 4.5 minutes, is somewhat "thirstier" at 2400 but there are 3000 Watt kettles (and more) from Russell Hobbs, Bosch and others that are a bit faster.
  11. bigmac
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    bigmac Well-Known Member Trusted Member

    i misunderstood. i read it as it would take 10 kwh for the end user to stream the HDfilm.. my laptop would melt !

    i reckon my household uses about 10 kw hours a day. say-- £1-50 plus the meter charge.. no--on second thoughts--more like
    a £1 a day--£30 a month. all in.
  12. oss
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    oss Somewhere Staff Member

    That is the implication 10kwh per movie, when you add up all the power requirements of the delivery network and hardware.

    I reckon more like .5kwh per movie but much less than that in your own household.

    The article was behind a paywall so I could only see part of it.
  13. Markham
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    Markham Guest

    The Mail has a fairly accurate paraphrase of it, Jim.
  14. oss
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    oss Somewhere Staff Member

    The Specific Heat Capacity of Water at sea level is a known quantity so you can say that a Thirstier kettle, in electrical terms, will boil faster, the chances are that the maximum energy required to boil 10 average kettles will be no more than 1kwh or 1 Unit and will probably be less than that by a fair margin.
  15. CatchFriday
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    CatchFriday British Expat living in Alicante, Spain

    I see so you are a dictator and no one is allowed to have another point of view?
    If it was a game of football and Manchester United were winning, would you shoot the opposition?
    Alan Carlin: The weird reality of world climate policy.......
  16. CatchFriday
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    CatchFriday British Expat living in Alicante, Spain

    I told you the sun is getting warmer
    New Satellite Data Confirm Real World Temperature Cooler Than Climate Models
  17. CatchFriday
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    CatchFriday British Expat living in Alicante, Spain


    Global warming is a theory -
    Climate Hearsay
  18. Mattecube
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    Mattecube face the sunshine so shadows fall behind you Trusted Member

    Currently if Manchester United were winning I would think I was in dreaming , do you not read the papers?
  19. CatchFriday
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    CatchFriday British Expat living in Alicante, Spain

    There appear to be a lot of members who want to insist on their point of view - dream on.
  20. Mattecube
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    Mattecube face the sunshine so shadows fall behind you Trusted Member

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