Are we really running out of fossil fuels?

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In summary, there is no definite answer to the question of whether we will run out of oil in 50 years. Estimates vary and there are many factors at play, including the potential for new technology and alternative energy sources. However, it is clear that fossil fuels are finite and will eventually run out. The lesson from history is that new alternatives tend to emerge, but there is no guarantee that this will happen in time to prevent potential consequences such as depletion and environmental damage. The debate continues over what the future holds for the world's energy needs.
  • #36
mheslep said:
As U.S. fertility rates have now dipped below replacement levels, per cap energy use is a significant predictor of where U.S. total energy consumption will lie in future. That, and immigration which is the only reason U.S. young population continues to increase. Note that immigration carries no exponential increase built-in.

Also, there were several things different in 1968 besides population. There were, for instance, no 104 nuclear reactors, no shale gas of significance, no 50 mpg cars, no widespread use of heat pumps, no ~95 percent efficient residential gas furnaces, no million barrels per day production of corn ethanol, no 2.8 l per 100km per seat jets, no 60 percent efficient combined cycle gas electric power plants.

That doesn't mean anything.. You increase efficiency by 30 percent but increase the greedy mouths and selfishness by 200 percent. I don't think your 100 km per seat jet is the issue here, I think it's unchecked population growth.

Forget about US fertility rates. The issue is world-wide fertility rates, which are roughly 350/250. I haven't done it recently, but several years back I did a rough calculation, and figured that about 250,000 people die everyday worldwide, and about 350,000 are born.
 
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  • #37
It is commonly asked, when will the world's supply of oil be exhausted? The best one word answer: Never.
MIT economist Ken Adelman
web.mit.edu/ceepr/www/publications/reprints/Reprint_171_WC.pdf
 
  • #38
DiracPool said:
That doesn't mean anything.. You increase efficiency by 30 percent but increase the greedy mouths and selfishness by 200 percent. I don't think your 100 km per seat jet is the issue here, I think it's unchecked population growth.

Forget about US fertility rates. The issue is world-wide fertility rates, which are roughly 350/250. I haven't done it recently, but several years back I did a rough calculation, and figured that about 250,000 people die everyday worldwide, and about 350,000 are born.
DP, I suspect "greedy mouths and selfishness" is an upsetting topic to you, but pls don't conflate the fossil fuels topic.

Global population growth, rate, has been slowing down for decades, that is, following the lead of the developed world like US The fertility rate of even places like Bangladesh is now down to 2.3

http://www.gapminder.org/videos/dont-panic-the-facts-about-population/
 
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