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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011
     
    So it seems that the road to ruin is paved with good intentions. This has got to be worth a discussion:
    http://www.guardian.co.uk/environment/2011/may/29/carbon-emissions-nuclearpower
    Especially with the announcement that Germany is decommissioning their nuclear generation. Purely out of interest I note that Germany is the 6th largest global producer of CO2 and the per capita is higher than ours (http://www.guardian.co.uk/news/datablog/2011/jan/31/world-carbon-dioxide-emissions-country-data-co2).
    • CommentAuthorJoiner
    • CommentTimeMay 30th 2011
     
    "This has got to be worth a discussion"

    Why? Other than for sake of argument.

    It's all been said by MacKay.

    The most interesting comment in the first link is the one pointing out that if we've had any statistically significant success at reducing OUR emissions, it's because we've exported manufacturing and its demand for energy to China and India. :bigsmile:
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011
     
    I thought that the 50% chance of keeping within 4C by 2100 was interesting.
    As the 10th biggest emitter in the world, and with housing accounting for around 30% and exporting our 'problem' elsewhere and manufacturing on the increase in the UK, I think it is valid. Loads of things to debate about housing.:bigsmile:
    • CommentAuthorPeter_S
    • CommentTimeMay 30th 2011
     
    The most interesting comment in the first link is the one pointing out that if we've had any statistically significant success at reducing OUR emissions, it's because we've exported manufacturing and its demand for energy to China and India.

    now that is creative energy accounting :sad:
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011
     
    Not sure if this reports takes into account the CO2 on imports, it is starting to happen as this has been pointed out loads of times in the past. Import/Export imbalance will happen to all countries, not always equally though. What MacKay referred to as 'Stuff'.
    • CommentAuthorJoiner
    • CommentTimeMay 30th 2011
     
    Indeed, as he (MacKay) explained, "stuff" renders complicated the already-complex.

    (As a related aside, some interesting downloadable presentation slides available here: http://www.integrated-energy.co.uk/index.php?option=com_content&view=article&id=48&Itemid=93 )
  1.  
    Anyone care to work out CO2 reality/energy life cycle/health impact of importing 50 million tonnes of biomass for burning in UK low efficiency powerplants?
    Interesting slides Joiner but concerned that NHS claim burning biomass creating levels of hazardous emissions many times higher than alternative fuels is in the interest of staff and patients? Sorry Damon!
  2.  
    "reducing OUR emissions, it's because we've exported manufacturing and its demand for energy to China and India."
    Outsourced emissions
    Yes our government offers up sats. on how we in UK have reduce our carbon emissions over the last few years , when really all we've done is export them. They've been aware of this for several years and advised by various in house reports that a consumption based view gives a clearer picture.
    • CommentAuthorJoiner
    • CommentTimeMay 30th 2011
     
    From which end of the telescope, Jim? :confused:
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011
     
    One advantage to 'exporting' our energy consumption is that the emerging economies to the East are building newer infrastructure where the 'per capita' emissions are lower. Or in plain English, they are more energy efficient than us, if only by denying a large percentage of their indigenous population access to cheap energy.
    We can't have our cake and eat it as they say. If we are really serious about energy efficiency and low carbon generation technology then we may in time become a manufacturing centre again (though this is more exchange rate driven than unit cost driven).
  3.  
    its fine to import good/ export energy consumption , especially if as you suggest ST our goods are produced more resource efficiently , but this needs to be shown, some how, in national consumption stats. or it make those stats. meaningless.
    there is also the social negative impact to consider when exporting jobs. though as you say this is more about exhange rate and other complex world trade stuff.
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011
     
    James
    Yes I agree that is should be shown. Food in my 'corner shop' has the carbon footprint on a lot of the goods, so it is starting. I am sure before too long it will be a marketing tool to bamboozle the public more.
    Had a quick look at China's and Japan's CO2/kWhe and they are 0.83 and 0.34 kg/kWh. Now this is only electricity, so will only be a percentage of the total, but China will have to make twice as much 'stuff' and Japan can make slightly less for any given kWhe to equal the UK.
    • CommentAuthorGavin_A
    • CommentTimeMay 30th 2011
     
    china's electricity carbon intensity is around 1.5 x that in the UK though, so for anything requiring large amounts of electricity to produce it (as opposed to human input), moving manufacturing from the UK to most of China would lead to the actual amount of carbon produced from it's manufacture to increase by around 50%.

    actually I think you've got the figures back to front.
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011 edited
     
    Gavin
    Assuming an 'all electric' process China would have to produce twice as much per kWh as their carbon intensity is about double (0.83 compared to 0.45 kg/kWh, no point bickering over decimals). I would have thought that with the scale they work at that this is quite feasible. Take into account the per capita usage (or what the workforce uses when not working) and it becomes even better. Now I know that electricity is only part of the process and there are all sorts of other factors that will affect door to door embodied energy levels.

    As an aside, not everything in China is hunky dory, they turn the towns off to keep the factories running but will now be turning the factories off as well. From today's Telegraph.
    "China braced for fall in metal output

    Summer energy shortages in China will hit the country's production of metals and bolster global prices, Commerzbank said.
    "It is often forgotten that China is not only the world's largest metal consumer but also its largest producer," analysts at the German bank state said. "Consequently, electricity rationing in the country in the next few months should also hit the metals industry hard and support prices."
    Commerzbank believes falls in China's metal output on the back of likely electricity shortages are not yet sufficiently priced into metal prices.
    "While the China Electricity Council had initially expected an electricity deficit of 30 gigawatts, the electricity provider State Grid now expects a shortage of up to 40 gigawatts, if coal shipments do not pick up soon," it said.
    Rising thermal coal prices coupled with government caps on the price of energy is making electricity generation unprofitable in many parts of China.
    Coal accounts for more than 70pc of the fuel requirements of power plants in the Asian nation, Commerzbank notes.
    Some coal-fired power stations in provinces such as Gansu, Hubei, Hunan, Shanxi and Shaanxi have closed, resulting in the worst electricity deficit since 2004, the official Xinhua News Agency said last week. "
    • CommentAuthorGavin_A
    • CommentTimeMay 30th 2011 edited
     
    oh, I see what you mean.

    Depends on the industry of course, but I don't think this is what's been happening in most cases. China's major advantages being the availability of cheap labour, relatively cheap energy costs and lax pollution regulations, none of which would really indicate that it's also likely that they can create twice the amount of product per kWh of energy than we can in the UK where electricity is far more expensive, and the motivation to reduce energy use more obvious.

    There will be situations where this is the case, but I doubt it's the norm. Actually I can see how that could be the situation where new plants in china replace old plants here, but the same new plant could also have been built here and achieved twice the carbon saving of the plant in china.

    IIRC there are some serious question marks around the clean development mechanism and this issue as well.

    eta - I'd be interested if you have any data on this though.
  4.  
    At least `China has the courage to use clean efficient coal technology similar to that developed at Buggendun not only being far more efficient than our old coal fired stations but with the ability to capture carbon at source.
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 30th 2011
     
    And they are going to build more hydro and nuclear as well as PV and Wind. They well understand the limitations of world supply. Could be because it is governed by engineers.
    • CommentAuthorJoiner
    • CommentTimeMay 31st 2011
     
    Something to be said for state-control after all then? :bigsmile:

    Wherefore the spirit of unregulated capitalism? :wink::wink:
  5.  
    http://planetark.org/enviro-news/item/62166
    The money men war with officialdom over carbon and apparently sadly we all suffer the consequences
    •  
      CommentAuthorSteamyTea
    • CommentTimeMay 31st 2011
     
    Think this has already happened when the German Government gave out permits to pollute willy nilly about 4 years ago. A direct Carbon tax is so much simpler and easier. As soon as there is a 'swapping, system then trouble starts.

    The job of a government is to set minimum standards and create infrastructures that allows commerce to flourish, this does not mean that they have to build everything. Garden fences are usually placed on property boundaries, one would not expect the government to come and build a fence around every property, what they do instead is provide a legal framework so that disputes can be settled.
  6.  
    http://planetark.org/enviro-news/item/62185
    Where are we going with carbon?
    • CommentAuthorJoiner
    • CommentTimeNov 25th 2011
     
    To hell on a hand cart, it would appear. What we've been committed to in the race to reduce global CO2 is little more than pissing into the sea...

    http://uk.news.yahoo.com/developing-economies-see-no-escape-coal-033345184.html
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