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Consolidated Climate Change/CO2/Global Warming Thread

Discussion in 'Science' started by hlokk, Feb 12, 2007.

  1. RnR

    RnR Member

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    Should we close this thread? It seems that the posts are no longer about the science and more about weather events or policies.
     
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  2. neRok

    neRok Member

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    That attitude isn't going to serve the world any good.
    Which is a good start, but it doesn't change the fact you are still directly responsible for what I would say is excessive and unnecessary fossil fuel consumption due to that AC usage. If everyone cut out the unnecessary usage, it would make a huge difference. Even something simple like turning the light off when leaving a room at night would make a beneficial difference at scale, but to a single person/family, it's a fraction of cent and get's ignored.
    We need a thread somewhere. People also complain about this sort of discussion in the Renewable Energy thread, so maybe we need a third thread?
     
  3. RobRoySyd

    RobRoySyd Member

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    More bad news: https://www.abc.net.au/news/2019-03...record-high-in-2018-according-to-iea/10941378

    China alone is building more coal fired capacity than the USA has plus i's building more in Africa as part of its foreign aid program.

    What troubles me most though is how the target keeps escalating. Once it was lets limit AGW to 1 degC, then 1.5 and now its 2 .
     
  4. adamsleath

    adamsleath Member

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    Robin Williams once said he was breaking his own standards faster than he could lower them.

    Also on the tv this evening some story about the coalition green lighting guaranteed funding assistance for big coal projects. :rolleyes: not to worry, todays idiots will be dead soon. and i wont be around to see the next wave of idiots, so there is some consolation, that the painwreck will be beyond my notice.
    gas, hydro and coal projects were mentioned.
     
    Last edited: Mar 26, 2019
  5. RobRoySyd

    RobRoySyd Member

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    There's been a significant increase in global gas burning but looking at the data from the IEA as a percentage coal for electricity isn't going up but for other things it seems it is. Coal is still needed for the production of Portland cement, steel and aluminium so pretty much anything we build or manufacture needs coal. For the pedants Yes, it's coke and charcoal could be used but there isn't enough trees to use that.

    On the positive side there's at least two companies that have the tech to capture CO2 and turn it into liquid hydrocarbons. Not cheap, it'd need petrol at USD 2.50/L to be viable but it could be simply used to capture all the CO2 we've added to the atmosphere for between USD 2.0 to 3.75 trillion. Which sounds a lot but compared to what is spent globally on defence doable.
     
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  6. adamsleath

    adamsleath Member

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    yes its a nice cyclic carbon neutral solution.

    we can achieve achievable things

    how the dollars equate to time+energy+materials input, to output of desirable produce and environmental quality?.... some people dont see the environmental quality aspect like I do. One only has to look at various parts of the world to see the environmental impacts of highly concentrated pollution. I am still a little bit concerned about tipping points for global warming. If one only sees liveable temperature for humans in artificial enclosures for habitation and food production...

    how much more energy does it take in airconditioning for example in an environment that is experiencing larger extremes in temperature? isn't this a measurable factor? using more global warming producing energy due to increased cooling and or heating costs/consuption, only leading to harsher extremes feeding back onto itself. its stupidity.

    Cold blooded animals (reptiles) like hot climates. Mammals and the like get stressed when their homeostasis is exposed to harsher temperature extremes.
     
    Last edited: Mar 27, 2019
  7. neRok

    neRok Member

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    Do the current range of airconditioners even function in 50°C? At the least, it must be extremely taxing on the components.
     
  8. adamsleath

    adamsleath Member

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    Last edited: Apr 29, 2019
  9. wwwww

    wwwww Member

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    So what you're saying is, we should invest in heavy-duty industrial air conditioning manufacturers?
     
  10. Queenie

    Queenie Member

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    actually, yes
     
  11. JSmithDTV

    JSmithDTV Member

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    https://insideclimatenews.org/news/...s-species-extinction-agriculture-food-forests

    JSmith
     
  12. adamsleath

    adamsleath Member

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    Last edited: May 7, 2019
  13. JSmithDTV

    JSmithDTV Member

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    I don't think you're reading what I am... o_O

    JSmith
     
  14. adamsleath

    adamsleath Member

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    oh. you want the destruction to continue?

    just an updated report on the good job being done?
     
  15. JSmithDTV

    JSmithDTV Member

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    Ay? Ya got an idea... spit it out. :)

    JSmith
     
  16. adamsleath

    adamsleath Member

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    simple. stop destroying natural habitats, and polluting the environment.
    & stabilise the human population.

    for the millionth time.

    and no. i dont want the destruction to continue. if that's your goal. ask someone else.

    Laws are put in place to protect people, and the environment.
     
    Last edited: May 8, 2019
  17. JSmithDTV

    JSmithDTV Member

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    Yes the article/report made it quite clear this was a large part of slowing climate change.

    JSmith
     
  18. adamsleath

    adamsleath Member

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    some impassioned and sensible speeches on progress on climate change and biodiversity maintenance. - in the house of commons.

    Nuclear and renewables to reduce gas emissions and end coal.

    EV's expansion.

    and real environmental sustainability as the basis of cross party consensus programmes of action.

    leading the way.
     
    Last edited: May 8, 2019
  19. neRok

    neRok Member

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    Here is another example of farmer's causing significant impacts to global warming: https://physicsworld.com/a/expanding-us-cropland-emits-same-as-36-new-power-plants/

    Between 2008 and 2012 expansion of cropland in the US released carbon each year equivalent to the running of 36 coal-fired power plants, according to scientists in the US.
    ...
    The total emissions from this uprooting of millions of hectares of grassland were roughly the same as those from deforestation of the Cerrado, Brazil’s vast tropical savannah, the scientists say.
    ...
    Spawn believes that emissions like these could be avoided via land retirement and preservation programmes, if enrolment criteria were expanded to include the carbon buried in grassland. A study by a large US team last year concluded that avoiding emissions from land-use change and mismanagement alone would allow the US to meet its obligations to the Paris Agreement.

    Spawn also points out an irony of the land-use change – much of it could have been motivated by meeting the US mandate for biofuel, which is supposed to reduce greenhouse-gas emissions. For that reason, he and his colleagues are working with economists to see how biofuel policy could be driving emissions.
    Paging Perko and OzRinger, as this follows on from the discussion a few weeks ago in the Labor policy thread.

    I find it sad and ironic that this land was used for biofuel crops. This is just farmers trying to get richer. Ultimately, there should be no need for these crops.
     
  20. adamsleath

    adamsleath Member

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    apart from burning methane (which would otherwise be released into the atmosphere as a potent green house gas) i think there is limited scope for biofuels. There are so many other options for energy generation that have lower environmental impact in terms of land use, and pollution.

    the biodiversity in grasslands and savannah is often underestimated.

    it speaks to the issue of grazing pasture versus croplands (ie it puts pasture into a more positive light) interesting point. also need to watch out for overgrazing.
    https://www.conservationinstitute.org/what-is-overgrazing/
    to remedy intensive feedlot degradation...requires inputs.

    good point:
     
    Last edited: May 11, 2019

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