Climate change

Discussion in 'Living Room' started by Lizzie, 15th Apr, 2019.

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  1. Lizzie

    Lizzie Well-Known Member

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    Climate change in simple terms - by the Utah Climate Centre - for those who are confused or need a brief education:

     
  2. Lizzie

    Lizzie Well-Known Member

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    What a fantastic "good news" episode (19/5) ... gives hope and positivity for the future ... and proves "it can be done"

    Landline
     
  3. Codie

    Codie Well-Known Member

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    Human CO2 is a tiny % of CO2 emissions
    “The oceans contain 37,400 billion tons (GT) of suspended carbon, land biomass has 2000-3000 GT. The atpmosphere contains 720 billion tons of CO2 and humans contribute only 6 GT additional load on this balance. The oceans, land and atpmosphere exchange CO2 continuously so the additional load by humans is incredibly small. A small shift in the balance between oceans and air would cause a CO2 much more severe rise than anything we could produce.” (Jeff Id)

    Before the industrial revolution, the CO2 content in the air remained quite steady for thousands of years. Natural CO2 is not static, however. It is generated by natural processes, and absorbed by others.

    But consider what happens when more CO2 is released from outside of the natural carbon cycle – by burning fossil fuels. Although our output of 29 gigatons of CO2 is tiny compared to the 750 gigatons moving through the carbon cycle each year, it adds up because the land and ocean cannot absorb all of the extra CO2. About 40% of this additional CO2 is absorbed. The rest remains in the atmosphere, and as a consequence, atmospheric CO2 is at its highest level in 15 to 20 million years (Tripati 2009). (A natural change of 100ppm normally takes 5,000 to 20,000 years. The recent increase of 100ppm has taken just 120 years).

    Human CO2 emissions upset the natural balance of the carbon cycle. Man-made CO2 in the atmosphere has increased by a third since the pre-industrial era, creating an artificial forcing of global temperatures which is warming the planet. While fossil-fuel derived CO2 is a very small component of the global carbon cycle, the extra CO2 is cumulative because the natural carbon exchange cannot absorb all the additional CO2.
     
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  4. Angel

    Angel Well-Known Member

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  5. Lizzie

    Lizzie Well-Known Member

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  6. Lizzie

    Lizzie Well-Known Member

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    Green is so much more beautiful

    https://edition.cnn.com/style/article/green-skyscrapers-roofs-city-architecture/index.html

    Screenshot (265).png
     
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  7. MWI

    MWI Well-Known Member

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    And who has most to gain...those heavily invested in renewables...?
    I have no objections to change or renewables as long as they are really facts and can be cost justified....however it seems to mean 'climate change' seems to be now a new 'religion' and there cannot ever be any sensible discussion BUT rather an emotional following.
    I don't plan to post on this topic anymore...some want revolutions and at this stage I choose to be the quiet Australian instead!:)
     
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  8. Lizzie

    Lizzie Well-Known Member

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    The price of existence needs a economic cost?

    How about government simply put a foundation in place and let private industry get on with it
     
  9. geoffw

    geoffw Moderator Staff Member

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    Not surprising really
    A Major Coal Company Went Bust. Its Bankruptcy Filing Shows That It Was Funding Climate Change Denialism.


    This book is interesting
    Merchants of Doubt - Wikipedia
    If global warming is really happening - and from all the things I see, I can't see that there's much doubt - then the world isn't going to be much of a place for my children and their children. But if it's not happening, but we reduce the burning of coal and oil, then the air is going to be cleaner anyway. Some of the large cities in many parts of the world are incredibly polluted, with much of that coming from the burning of fossil fuels. Which are a limited resource in any case.
     
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  10. Lizzie

    Lizzie Well-Known Member

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    Watch the TED talk I posted about a couple above - and watch Landline 19/5 ... it's not a religion but a future and it's a positive future :)
     
  11. SatayKing

    SatayKing Well-Known Member

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  12. Lizzie

    Lizzie Well-Known Member

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    The universities are doing some amazing work - this one has been around for a while. They literally look like large film negatives (from da oldie days)

    Innovative University of Newcastle printed solar panels move through successful Brambles trial

    Technology is moving so quickly and I'm excited. Will be renovating/extending next PPOR in around 18 months and can't wait to see what is available. Will definitely be putting on 10mgw solar system with battery - solar hot water - and looking into solar hydronic underfloor heating
     
  13. geoffw

    geoffw Moderator Staff Member

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    Batteries aren't quite cost effective yet. They're getting closer, but on today's power prices, they're not there yet.
     
  14. SatayKing

    SatayKing Well-Known Member

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  15. Lizzie

    Lizzie Well-Known Member

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    Your feed in's are right - panel systems aren't made any bigger than 6.6kw ... so to go double panel system one needs to upgrade to 3phase which - since we'll have the house stripped out anyhow, and it's on a suburban size block (not big arsed farm distances) we'll go the 3phase ... with batteries and a car charger in the garage
     
  16. Lizzie

    Lizzie Well-Known Member

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  17. Handyandy

    Handyandy Well-Known Member

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  18. Lizzie

    Lizzie Well-Known Member

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    Hohum - been answered already in this thread ... but for those who can't be bothered going back ... the answer can be found in this article from Harvard Uni:

    Why is Antarctica's Ice Sheet Growing in a Warming World? - Science in the News

    or - if you're particularly fond of NASA - then perhaps you should look into the science behind the declaration:

    Antarctica's contribution to sea level rise was mitigated by snowfall – Climate Change: Vital Signs of the Planet

    “Our findings don’t mean that Antarctica is growing; it’s still losing mass, even with the extra snowfall,” said Brooke Medley, a glaciologist with NASA Goddard Space Flight Center in Greenbelt, Maryland, and lead author of the study, which was published in Nature Climate Change on Dec. 10. “What it means, however, is that without these gains, we would have experienced even more sea level rise in the 20th century.”

    or - maybe this one from Live Science:

    Nearly 25% of West Antarctic Ice in Danger of Collapse

    The cost of taking action is nothing - the cost of not taking action is everything
     
    Last edited: 24th May, 2019
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  19. geoffw

    geoffw Moderator Staff Member

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  20. Casteller

    Casteller Well-Known Member

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    Facebook ... this is part of the problem, misinformation via social media assisting resistance to taking action. It´s similar the the anti-vax movement, fueled by false information, but the repercussions are many times worse with climate change. The tech giants should de-monetize this stuff, like they did with the anti-vax garbage.

    [​IMG]

    Climate Science Denial Explained: Tactics of Denial
     
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