Global warming, an irreversible cycle?

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Draco
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Global warming, an irreversible cycle?

Post by Draco » Tue Dec 04, 2007 10:55 am

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.

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Post by hanhan2008 » Tue Dec 04, 2007 3:30 pm

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?

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Draco
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Post by Draco » Tue Dec 04, 2007 4:38 pm

Yes but is this cycle that has been started irrevercible or can we prevent the accelerated melting of the permafrost?
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woolleyy
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Post by woolleyy » Tue Dec 04, 2007 4:44 pm

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...

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Post by mith » Tue Dec 04, 2007 5:54 pm

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

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Draco
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Post by Draco » Wed Dec 05, 2007 8:55 am

True, in the earths time we are relatively new while climate change has happened before.
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Post by alextemplet » Wed Dec 05, 2007 9:14 am

hanhan2008 wrote: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?
Generally speaking, the more people talk about "being saved," the further away they actually are from true salvation.

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MrMistery
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Post by MrMistery » Wed Dec 05, 2007 1:35 pm

Agreed with Dave. After we kill ourselves(and i think we will) this big rock will continue to be here...
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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Post by mcar » Thu Dec 06, 2007 1:40 pm

If we do not stop our exploitation of the nature.
---Just one act of random kindness at a time and you can change the world---

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Post by AstusAleator » Fri Dec 07, 2007 5:35 am

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.
What did the parasitic Candiru fish say when it finally found a host? - - "Urethra!!"

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Post by mcar » Fri Dec 07, 2007 5:39 am

What if you're one of them? would you wish dying instead? or live it up?
---Just one act of random kindness at a time and you can change the world---

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Draco
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Post by Draco » Fri Dec 07, 2007 9:58 am

mcar wrote: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.

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