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Topic:
Is Planet Earth at it's "11th Hour"
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Master_SweetPea
Registered:
Nov '02
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Date Posted:
8/7/07 7:13pm
Subject:
RE: Is Planet Earth at it's "11th Hour"
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Darth-Ghost posted:
Study: Renewable Energy Not Green
...Continued here
...So basically the only chance to save the environment is to either abandon technology and live like the pioneers, or come up with a scientific breakthrough like fusion power. Or just let the environment be destroyed. Which do you think is most likely? 
*ahem*
There is one solution that [i]comes up every morning.
puts some "PV"'s or solar cells on every other roof in america and we'd be doing much better, the problem is finding the money.
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I don't like the donkeys and I don't like the Elephants http://www.lp.org "Some people never have anything except ideas Go Do it! Lucky Numbers 3, 11, 21, 31, 41, 43"
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Andreas_Lamont
Registered:
Jun '05
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Date Posted:
8/8/07 9:08am
Subject:
RE: Is Planet Earth at it's "11th Hour"
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Jabbadabbado posted:
overshoot issues
- global warming
- commercial extinction of the oceans
- wildlife habitat loss and mass extinctions
- water scarcity
- soil depletion
- limits of global grain production
- fossil fuel depletion
- general nonrenewable resource depletion
ok global warming, everyone's doing a grand job of explaining it, but i'l put my boot in anyway. we've known about it for years, even in the late 60's 70's this was predicted, and nothing was done. in the same respect, climate change is a natural cycle of the planet, we've seen a few ice ages before, this could be the progression into another one. i doub't their will be much we can do about the change now. were not going to stop the inevitable.
Commercial extinction of the oceans, thats a good one, i don't know if everyone realises the importance of the sea to us. not only as a food source, but as a trigger for climate etc. perhaps we would not be so reckless with it now.
Fossil fuel depletion is going to hit us very hard indeed, the human race has advanced so much because of fossil fuels, were going to see an end of fossil fuels probably before any of the other problems listed there. with some corperations giving oil less than 10 years.
cheers
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Yoda FTW!
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ShaneP
Registered:
Mar '01
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Date Posted:
8/8/07 12:19pm
Subject:
RE: Is Planet Earth at it's "11th Hour"
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Esp, did you read the part of that article where most experts believe the population of the world will stabilize at around 10 billion by mid-century?
The modernized world is already there and nations like China and India are rapidly catching up(in decade terms).
And who would you have define what people can "reasonably have"?
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quiller
Registered:
Jun '05
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Date Posted:
8/10/07 11:00pm
Subject:
RE: Is Planet Earth at it's "11th Hour"
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ShaneP posted:
Esp, did you read the part of that article where most experts believe the population of the world will stabilize at around 10 billion by mid-century?
The modernized world is already there and nations like China and India are rapidly catching up(in decade terms).
And who would you have define what people can "reasonably have"?
I for one do not believe it possible that the worlds population will "stabilize" with out some major event effecting it some how.. come on even with the "black death" in our past was our population stabilizing during this time.. no it still was growing..
and one thing I am sure of man will never stop wanting things.....
also.. I might be wrong but IMO earth has had ice ages before and will have them again with man or without man....
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Lowbacca_1977
Title: Senate Moderator
Registered:
Jun '06
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Date Posted:
8/11/07 12:15am
Subject:
RE: Is Planet Earth at it's "11th Hour"
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quiller posted:
I for one do not believe it possible that the worlds population will "stabilize" with out some major event effecting it some how.. come on even with the "black death" in our past was our population stabilizing during this time.. no it still was growing..
Well, during the black death, population wouldn't stabilise, it decreased.
Further, there is evidence of sabilisation. Japan, Czech Republic, Germany, Poland, Russia, and many of the former soviet republics all have negative population growth. The EU's birth and death rates are equal and any growth in population now is due to immigration.
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quiller
Registered:
Jun '05
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Date Posted:
8/15/07 10:26pm
Subject:
RE: Is Planet Earth at it's "11th Hour"
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If you look at the rise of world population starting from year zero to the 19th Century Black Death barely slowed it down. Then with the start of the 19th Century it even started taking off more...
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Jabbadabbado
Registered:
Mar '99
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Date Posted:
8/16/07 5:11am
Subject:
RE: Is Planet Earth at it's "11th Hour"
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I'd argue that there is a difference between the size of the population that is being sustained now and the size of a long-term sustainable population. The size of the population is stabilizing because the maximum limits are being reached for food production. However, current levels of food production probably cannot be sustained long-term.
If the inputs to modern food production cannot be sustained, then absent technological revolution, the population will decline.
If the inputs to modern food production begin to decline, then any technological revolution will have to come online fast enough to compensate for that decline.
The input challenges:
-water for irrigation
-soil erosion
-depletion of fossil fuels needed for mechanized farming and the manufacture of fertilizers and petrochemicals used in agriculture, as well as for the transportation/distribution of food once produced.
-Mined phosphorous depletion
-ocean and lake fishery depletion.
-climate change affecting agricultural crops and planting/harvesting cycles.
Even if the population stabilizes at 10 billion, that may be too many people for long term sustainability.
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Malthusian Doomsday Quack
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