There is no way to tell for sure. My guess would be not any sooner than 10,000 years from now and not much later than another one million years from now at the outside.
We can continue to exist as a species only as long as Earth's atmosphere, climate and environment remain pretty much the same as they are today. However, they won't always stay the same. More Ice Ages and climatic changes will occur in the future.
A lot of the crops we grow and eat today like corn, barley, rye, oats, wheat and rice may be impossible to grow in a new environment. Many of the animal species we eat today ( Salmon, tuna, chickens, pigs, cows, goats, sheep etc.) may become extinct and we will be unable to eat any new species of animals very well.
During most of the Pleistocene Epoch between 1.8 million years ago and 12,000 years ago, the Earth's climate and fauna were such that Neanderthal people actually fared better than our own ancestors did. If Pleistocene conditions had continued, Neanderthals would still dominate the Earth and we would be the underdogs.
2007-12-26 20:43:32
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answer #1
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answered by Brennus 6
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2012
2007-12-26 13:09:01
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answer #2
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answered by Dennis C 1
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December 21, 2012
2007-12-26 13:11:29
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answer #3
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answered by mindy v 2
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If there is a major war with many countrys involved.
[I hope humans will never become extinct though]
2007-12-26 13:03:08
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answer #4
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answered by Anonymous
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Unless there is some really major disaster think humans will be around for quite a while.
There are a lot of us inhabiting almost every part of the world, we can alter our environment, and we aren't too fussy what we eat. A recipe for biological success!
2007-12-26 13:05:26
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answer #5
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answered by Exodus 6
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It is a slow process but may end up abruptly one day. Global climate change followed by global warming and insensitive attitude of individuals towards this menace plus division of entire humanity in to two man made factions namely good and bad may lead to house to house battle on the name of saving their respective civilizations and thus the end for so called good and so called bad are not judged by men, women and children but are self proclaimed, self styled and self framed.
Regards
2007-12-26 13:12:19
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answer #6
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answered by Anonymous
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When is unknown...but extinction is certain. One day another species will take over from us. It's happened many times in the world's lifetime...it will happen again.
2007-12-26 13:04:45
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answer #7
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answered by ms_beehayven 5
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What's kind of ironic is I'm listening to Weird Al's "Christmas at Ground Zero" right now.
Anyway, well, I'm not really sure but as long as nothing happens to stop global warming... well... it's the kind of thing I don't realy like thinking about.
2007-12-26 13:05:33
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answer #8
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answered by hannahhonolulu 3
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Never but our existence has an enormous toll on the environment. Once a rain forest is destroyed it cannot be brought back.
2007-12-26 13:02:57
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answer #9
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answered by Anonymous
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Shortly after the next catastrophe.(asteroid or volcanic)
2007-12-26 13:02:41
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answer #10
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answered by Anonymous
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