Global Warming: Your opinion ....

Discussion in 'Serious Discussion' started by R29k, Jun 14, 2011.

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Is Global Warming man made or a natural cycle ?

  1. Yes, it is man made

  2. Undecided

  3. No, I think there is another reason for it

Results are only viewable after voting.
  1. gorski

    gorski MDL Guru

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    Better not to write than to write nonsense, quite frankly...
     
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  2. Yen

    Yen Admin
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    The evolution of mankind has been fundamentally influenced by the taming of fire and cooking.
    If we hadn't burnt wood we would not be as we are now.

    It's exactly the 'out of balance' perspective that gets trouble for humankind. To that belongs the black / white arguing.
    You can burn wood as much as you want if you care that the same amount that has been burnt grows again.

    This does not apply to the primary energy source of all, the sun. The sun lasts the longest time and will limit our energy.

    You can use fossil fuels to produce devices that use sun energy to make electricity. Important is the purpose to move away from them. The higher the percentage of renewable energies, the higher the percentage of renewable energy used to make new devices...
     
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  3. gorski

    gorski MDL Guru

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    https://www.goodnewsnetwork.org/how...lq1yPxK4GSGqWcSbt5Qp-Gc#.XglpJmdapro.facebook

    For First Time Ever, Scientists Identify How Many Trees to Plant and Where to Plant Them to Stop Climate Crisis
    By Good News Network
    Jul 7, 2019
    [​IMG]

    Around 0.9 billion hectares (2.2 billion acres) of land worldwide would be suitable for reforestation, which could ultimately capture two thirds of human-made carbon emissions.

    The Crowther Lab of ETH Zurich has published a study in the journal Science that shows this would be the most effective method to combat climate change.

    The Crowther Lab at ETH Zurich investigates nature-based solutions to climate change. In their latest study, the researchers showed for the first time where in the world new trees could grow and how much carbon they would store.

    Study lead author and postdoc at the Crowther Lab Jean-François Bastin explains: “One aspect was of particular importance to us as we did the calculations: we excluded cities or agricultural areas from the total restoration potential as these areas are needed for human life.”

    LOOK: Rooftop Panels of Tiny Plants Can Cleanse Polluted Air at 100 Times the Rate of a Single Tree

    The researchers calculated that under the current climate conditions, Earth’s land could support 4.4 billion hectares of continuous tree cover. That is 1.6 billion more than the currently existing 2.8 billion hectares. Of these 1.6 billion hectares, 0.9 billion hectares fulfill the criterion of not being used by humans. This means that there is currently an area of the size of the US available for tree restoration. Once mature, these new forests could store 205 billion tonnes of carbon: about two thirds of the 300 billion tonnes of carbon that has been released into the atmosphere as a result of human activity since the Industrial Revolution.
    [​IMG]
     
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  4. Enthousiast

    Enthousiast MDL Tester

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    [​IMG]
     
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  5. gorski

    gorski MDL Guru

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    Not sure I understand fully what you tried to say here.

    My point is clear: not using fossilised remains of life past for energy purposes (as in burning them for energy) but to make some stuff from it is OK, by and large, where inevitable. On the other hand, we are constantly improving, in terms of needing those for the everyday stuff, so I don't doubt our ingenuity, creativity, capacity to imagine and make possible something new, which will make our life on this planet sustainable...

    At the moment we are not doing it. Pollution from ICE vehicles is an absolute abomination for start! That alone would be quite an achievement, if we managed to eliminate this horror we are exposing our kids to...
     
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  6. Yen

    Yen Admin
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    #1506 Yen, Jan 11, 2020
    Last edited: Jan 11, 2020
    I related that to the 'black/white' arguing.
    We don't save the earth when we go into a cave, do burn nothing anymore and do eat raw veggies again.

    (An analogue would be: We don't regain privacy by unplugging from the internet and never being online).

    Wood (stored sun energy) was 'responsible' that humankind could develop. Fossil fuels gave us plastics and other materials, energy and industry.
    Nature allowed us to use stored sun energy to get the knowledge and tech how to make use of sun energy directly.

    It's all about to recognize that the storage process took million years of time and the amount is limited.
    Also to recognize that the storage process IS a storage of carbon which will be released as CO2 again when burnt.

    We have to use the sun energy directly. Human goal must become: As many percentages of renewable energies as possible and as soon as possible.

    It's quite clear even because the sun is burning naturally already and delivers energy, whilst the fossil fuels need to be burnt with 'human intent'. By that all the stored carbon gets back to atmosphere and we do a major impact on nature by reversing a natural process that took millions of years.

    Furthermore oil is too precious just to burn it all the time. Most of our common meds are based on fossil oil.
     
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  7. gorski

    gorski MDL Guru

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    #1507 gorski, Jan 11, 2020
    Last edited: Jan 11, 2020
    No, fossil fuels did not give us energy and industry. They added another source of energy and a specific kind of industry was developed from it. We had industry before that, we have industry besides that industry and we shall have it when oil/coal is gone... At the beginning of XX c EVs were way more common than ICE engines etc. So, I did not argue black-white and you have not qualified your statements...

    The rest I agree with...
     
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  8. gorski

    gorski MDL Guru

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    Except I don't understand the bit about the meds - can you explain, please?
     
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  9. Joe C

    Joe C MDL Guru

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  10. Yen

    Yen Admin
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    Yep, it were fossil fuels as posted.

    I did not mean you.
    It was Joe suggesting living in a cave without to burn anything any more.

    Fossil oil is source and most important natural source for the chemical industry, source of (if not fuel) to make dye, plastics (polymers) and pharmaceuticals. Also cosmetics.

    The pharmaceutical / chemical industry needs organic solvents in a large amount (obtained/synthesized from oil) for the manufacturing process and oil as base material (petrochemicals) for organic synthesis to make synthetic drugs.

    To be more specific. Cumene, amines, phenols, benzene. Also other aromatic compounds are used.
    Polymers are used to make pill capsules, as pharmaceutical additives and coating. (For instance to retard the drug).

    The classic common drug based on oil is Aspirin. (Benzene is used. Whenever you find the benzene ring in a simple structure you can consider it's actually synthesized from the benzene contained in / obtained from fossil fuel).

    When you synthesize an organic compound you have to start somewhere and to plan the synthesis.
    Many base compounds are obtained from fossil oil.
     
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  11. Michaela Joy

    Michaela Joy MDL Crazy Lady

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    I'd also like to add that bio-secure packaging is made from petrochemicals,
    without which most of us would be dead from various diseases / infections.

    The problem is not so much petrochemicals, but the fact that we do -not-
    clean up after ourselves.
     
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  12. gorski

    gorski MDL Guru

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    #1512 gorski, Jan 11, 2020
    Last edited: Jan 13, 2020
    Right, sorry, Yen, of course not plastic, an error written in speed - oil/fossil fuel did not give us energy, industry etc. Edited, of course... ;) And my points of disagreement still stand.

    Articles on Google must be interpreted, hence I asked an expert, Joe - for a reason... But OK, go on and be a clever arse if you must... it's your image, after all... :rolleyes:

    Petrochemicals are poisoning our world in untold millions of ways! They are not just good in some ways (some medicines) but also...

    What would Joe say now: ever heard of Google? :rolleyes: I posted it here a few times but did anybody retain any info? Duh!
     
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  13. Yen

    Yen Admin
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    #1513 Yen, Jan 12, 2020
    Last edited: Jan 12, 2020
    I have deleted the personal addressing posts.
    "Fossil fuels gave us plastics and other materials, energy and industry."

    By that I mean:
    How did / do we get steel / iron to build factories / industry infrastructure at all?
    How did / do we manage transport of goods?

    Richard Arkwright steam spinning Jenny
    James Watt steam engine
    George Stephenson steam loco

    I mean manily industry 1760 and later.

    Anyway: How do you get iron / steel? By using fossil coal to reduce iron ore.
    Without (chemical) energy from fossil fuels (especially coal) there would be no single thing made of iron / steel. (Except the very rare meteoric iron).
    Already at Iron Age coal made from wood 'gave us' energy to make iron at all. (Also forging furnaces)
     
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  14. gorski

    gorski MDL Guru

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    We got steel only after we had oil refineries? You know this is wrong...

    https://steelfabservices.com.au/who-invented-steel-a-look-at-the-timeline-of-steel-production/

    Boats, ships, carts, animals, even electric vehicles at the start of the XX c - as I already mentioned but no one is listening...

    https://en.wikipedia.org/wiki/History_of_the_electric_vehicle

    You know what is baffling: you are conflating what we do currently with what is possible, especially nowadays... AND you forget what we did before we had petrochemical industry. Weird. Almost surreal...

    As mentioned, this is wrong, simply incorrect...

    And at the end you jump into your own stomach by saying:

    Sorry, once again, your unqualified statements are misleading and factually incorrect on oh so many levels...
     
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  15. gorski

    gorski MDL Guru

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  16. Yen

    Yen Admin
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    #1516 Yen, Jan 13, 2020
    Last edited: Jan 13, 2020
    Gorski, the way we are thinking is very different. I don't mean content, I mean structure and perspective.
    We frequently get misunderstandings since we 'work' different here. :D
    I can focus and isolate a perspective, but then I jump with my thoughts...and yes some find it hard....but others have no problem.

    (For instance I bet that MJ has clearly got what I have posted there). :)

    It's simply about this statement: "Fossil fuels gave us plastics and other materials, energy and industry."

    Of course is this wrong. But I never have said that!
    Sometimes I think you want get me wrong with intent..lol.

    You won't find a piece of iron / steel (and I mean today and any day before) that hasn't been obtained by reducing iron ore (plus the very rare meteoric iron).
    And always carbon has been used to do that. That is fact and reasoned by Chemistry. Ground-based iron never occurs pure, it occurs as ore.

    Only the form of carbon has changed during history. (wood-->charcoal and then fossil coal / coke).

    We (humankind) were already at 100% renewable energies a long time before.
    The history of human energy consumption is quite interesting:

    First (being hunter, gatherers and fishermen) we 'only had' raw food as energy source.
    Then we tamed the fire and learned to cook. By that we raised the usable energy of the food.
    The first milestone concerning energy consumption: agriculture. Fuel still was biomass (plant remains, straw, animal feces, animal fats and oils / herbal oils and the most important one wood!)
    And we made use of animal power. We invented the first machines. Water- and windmills.

    BUT the industrial revolution came along with the usage of fossil coal! From wood to fossil coal!
    The breakthrough of fossil coal was benefited by the shortage of wood and charcoal AND the invention of the steam engine.

    By using the steam engine it was now possible to pump out mine water! It needs steam and therefore fuel and it took care that coal mines rapidly delivered more coal.

    Fossile fuel (coal), steam engine and industrial revolution are mutually dependent.

    You also can say. We (humankind) turned away from renewable energies by the industrial revolution by turning away from using wood and charcoal and turning to fossil fuels. First coal and later oil and gas.

    Now it's time again to get back to renewable energies again.
     
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  17. gorski

    gorski MDL Guru

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    Yeah, what you just wrote is you echoing what I said, as if you said it first and as if you haven't driven the argument in the opposite direction... And gain, you are trying to escape your unqualified statements, as I have demonstrated earlier... The most difficult to swallow :D is you avoiding the "inconvenient" bits... Look at the history of steel-making and you will see what I mean... Look at the history of electric vehicles and you will see what I mean...

    OK, English is not your mother tongue and you are obviously not expressing yourself in the best possible manner, grammatically speaking - but it's not my mother tongue either, so... ;)

    Simply put, I take you seriously, as opposed to a bunch of clowns here :D - hence I put what you write under proper scrutiny... ;)
     
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  18. gorski

    gorski MDL Guru

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    #1518 gorski, Jan 13, 2020
    Last edited: Jan 13, 2020
    One more thing: my perspective is historical (geschichtlich), properly based, whereas you seem to be... wandering round...

    Your method is incoherent on these issues, sorry to have to point this out......
     
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  19. gorski

    gorski MDL Guru

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    #1519 gorski, Jan 13, 2020
    Last edited: Jan 13, 2020
    "How did / do we get steel / iron to build factories / industry infrastructure at all?"

    To demonstrate: unqualified is the bit here that "suggests" we only got iron and even steel after we had fossil fuel industry... We had both before that. Look at my link above.

    More importantly, we can now have it done differently.

    Even more importantly, we will certainly develop new technologies, based on renewables, since we must do that, as I know you agree....

    Point in question: we have had industry and inventions before fossil fuel industry and we shall certainly have it after they are gone.

    We better!
     
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  20. Joe C

    Joe C MDL Guru

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