Global warming, an irreversible cycle?

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    • #8724
      Draco
      Participant

      Ok I know there are a lot of global warming threads but consider this:
      The increased levels of CO2 have caused temperatures around the world to rise.
      One of the areas that have been affected most is Siberia, a place covered in permafrost. The permafrost starts to melt; plant material in the permafrost starts to ferment producing Methane, a greenhouse gas that is 21 times stronger than CO2.
      The area of permafrost covers something like 10% of the surface of the earth. The more Methane released into the atmosphere the faster the permafrost melts, increasing the amount of Methane released, etc.

    • #78921
      hanhan2008
      Participant

      Hehe, is it really worrisome? Global warming may have many unpredictable outcomes. But "unpredictable" is not the same as "bad". I’m eager to see what surprises Mother Nature can give us! Anyway, it’s even difficult to prove that being alive is better than being dead, isn’t it?

    • #78926
      Draco
      Participant

      Yes but is this cycle that has been started irrevercible or can we prevent the accelerated melting of the permafrost?

    • #78927
      woolleyy
      Participant

      Haha, good way to look at it hanhan.
      I understand what you’re saying draco, but I think there are many other factors involved, that we don’t know about. There are probably many positive feedback loops involved in the production of greenhouse gases. But there may also be some negative feedback systems that save the day. Like I found out today that the methane that is released in the atmosphere is degraded by a certain system (kinda wishing I’d asked about the mechanism now… Sorry).

      I think Mother Nature has got things firmly under control, she knows we’re pumping out a lot of greenhouse gases, and she’s gonna give us, like, 50 years to stop, then BANG! She’s gonna iceage us back to square one…

    • #78931
      mith
      Participant

      The earth doesn’t care about global warming. We do. If all else fails, we die out. The earth will keep on humming.

      [/img]

    • #78960
      Draco
      Participant

      True, in the earths time we are relatively new while climate change has happened before.

    • #78961
      alextemplet
      Participant
      quote hanhan2008:

      Hehe, is it really worrisome? Global warming may have many unpredictable outcomes. But “unpredictable” is not the same as “bad”. I’m eager to see what surprises Mother Nature can give us! Anyway, it’s even difficult to prove that being alive is better than being dead, isn’t it?

      Using this logic, why don’t you go ahead and kill yourself and see how much fun it is?

    • #78970
      MrMistery
      Participant

      Agreed with Dave. After we kill ourselves(and i think we will) this big rock will continue to be here…

    • #79031
      mcar
      Participant

      If we do not stop our exploitation of the nature.

    • #79115
      AstusAleator
      Participant

      Eh I hope some humans survive and are forced to live in a world with only a handful of species. That way there will be some sorrow and self-defeating bitterness left for a few more thousand years.

    • #79117
      mcar
      Participant

      What if you’re one of them? would you wish dying instead? or live it up?

    • #79126
      Draco
      Participant
      quote mcar:

      If we do not stop our exploitation of the nature.

      But thats the problem. People are cutting down rainforests and planting palm oil plant so the palm oil can be used in bio fuels which they think are ecofriendly while in reality they are producing more CO2 by making and using biofuel than by using petrol.

    • #79189
      AstusAleator
      Participant

      Using agricultural biofuel is recycling recently captured carbon as opposed to fossil carbon in petroleum.

      I’ll agree that it seems silly to chop down a rainforest (read carbon sink) to install a "sustainable fuel" operation.

    • #80199
      Draco
      Participant

      The land isn’t even fertile once the bio fuel is harvested so they need to clear more rainforest to grow more of the palm oil.

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