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JimmyCracksCorn
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Macedonia - Sovereign country north of Greece.
Dec 2002 time: 05:23
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Kuci, regardless of this particular study, it is well established that humans have had an enormous effect on environmental change in the past 200,000 years.
Look at the midwest. Look at the absense of mega fauna in North America. Look at the Arizona desert. Look at ancient Mesopotamia. If you're not familiar with what has happened in these areas, then clearly you're not up to date on what the ecological and archaeological record has proven humans to be capable of.
This doesn't in itself prove that this study is correct, but in light of history, it sure seems pretty likely... especially now that we've been spewing crap into the atmosphere for about 200 years or so.
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Geronimo
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st cloud USA
Jan 1970 time: 05:23
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quote: Originally posted by JimmyCracksCorn
Kuci, regardless of this particular study, it is well established that humans have had an enormous effect on environmental change in the past 200,000 years.
Look at the midwest. Look at the absense of mega fauna in North America. Look at the Arizona desert. If you're not familiar with what has happened in these areas, then clearly you're not up to date on what the ecological and archaeological record has proven humans to be capable of.
This doesn't in itself prove that this study is correct, but in light of history, it sure seems pretty likely... especially now that we've been spewing crap into the atmosphere for about 200 years or so. |
'well established' only extends back a few tens of thousands of years at most. The role of humans in the extinction of mega fauna in north america is still hotly debated.
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JimmyCracksCorn
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Macedonia - Sovereign country north of Greece.
Dec 2002 time: 05:23
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quote: Originally posted by Geronimo
'well established' only extends back a few tens of thousands of years at most. The role of humans in the extinction of mega fauna in north america is still hotly debated. |
Its hotly debated whether or not humans were solely responsible for it. But its pretty established that we played a huge role in it. The archaeological record supports this.
But as far as the rest, we know that humans drastically alter every ecological niche that we enter. Its not always for the worse, but it certainly doesn't exclude negative changes either.
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chegitz guevara
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Ft. Lauderdale, FL Communist Party of Apolyton
Jun 2000 time: 00:23
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quote: Originally posted by JimmyCracksCorn
Kuci, regardless of this particular study, it is well established that humans have had an enormous effect on environmental change in the past 200,000 years. |
There's a difference between micro and macro effects. Only a complete idiot, and yes, I know there are many, would deny we have an impact in limited areas. What they deny is our impact on a global scale. They have soemthing of a point (of course, we're a global species and if we effect everywhere on the micro level, we've done it on a macro level). What this study does is say, only these models "of unknown validity" match the real world data. Incidentally, that would be what it takes to validate the models.
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