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Population Bomb: new study discusses population impacts upon global warming emissions
Watts Up With That? ^ | October 12, 2010 | posted by Ryan Maue

Posted on 10/13/2010 12:42:54 PM PDT by Ernest_at_the_Beach

Posted on by Ryan Maue

The Population Bomb (Paul R. Ehrlich)

A new study in PNAS by O’Neill et al. (2010) describe “population shifts” as having a substantial influence upon greenhouse gas emissions.  From the abstract of Global demographic trends and future carbon emission:

Substantial changes in population size, age structure, and urbanization are expected in many parts of the world this century. Although such changes can affect energy use and greenhouse gas emissions, emissions scenario analyses have either left them out or treated them in a fragmentary or overly simplified manner.We carry out a comprehensive assessment of the implications of demographic change for global emissions of carbon dioxide. Using an energy–economic growth model that accounts for a range of demographic dynamics, we show that slowing population growth could provide 16–29% of the emissions reductions suggested to be necessary by 2050 to avoid dangerous climate change. We also find that aging

and urbanization can substantially influence emissions in particular world regions.

Thankfully, the authors did not make any assumptions about how reduced population growth would occur.  From the discussion:  (O’Neill et al. 2010)

Economic development is one factor that can facilitate declines in fertility and slower population growth. If it were assumed that increases in economic growth rates were driving fertility decline, our results would differ: faster economic growth would have an upward effect on emissions, offsetting the emissions reductions caused by slower population growth to some degree.

And from the final paragraph:

However, more rapid economic development is not the only factor, or a necessary one, in facilitating fertility decline.  Policies can also significantly affect fertility trends. Although the appropriateness of policies that encourage even lower fertility in countries where it is already low is debatable and would require consideration of the trade offs associated with increased aging (29), in other regions, there are several such policies already considered desirable in their own right. For example, household surveys indicate that there is a substantial unmet need for family planning and reproductive health services in many countries. Policies that meet this need would reduce current fertility by about 0.2 births per woman in the United States (30) and 0.6–0.7 births per woman in the developing world (SI Text has details of this calculation). This reduction is comparable with the 0.5 births per woman difference in fertility assumptions between the population scenarios used here. In our analysis, emissions reductions in these regions (i.e., the United States and developing country regions other than China) amount to about one-half of the total reductions that result from following a lower global population growth path, suggesting that family planning policies would have a substantial environmental cobenefit.

Note the paper is freely available online through the PNAS open access option.  Nature.com has a blog posting that’s helpful:

Aging reduces emissions as elderly people contribute less to economic growth. Urbanization has the opposite effect: The migration of people from the countryside to large cities boosts the supply of labour and so fuels economic growth and the demand for energy, the study finds.

Aging is likely to dominate future demographic development in most industrialised countries, the study concludes. But in China and India, which together account for more than one third of global population, urbanization is likely to be the key factor.

94 Responses to Population Bomb: new study discusses population impacts upon global warming emissions



TOPICS: Business/Economy; Extended News; Foreign Affairs
KEYWORDS: globalwarming; globalwarminghoax

1 posted on 10/13/2010 12:43:00 PM PDT by Ernest_at_the_Beach
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To: All
From the comments....IPCC connections:

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pat says:

October 12, 2010 at 6:36 pm

population is popular:

among the authors is shonali pachauri, daughter of rajendra, whose wife is also into “population” studies:

Jan 2010: EU Referendum: Richard North: Keeping it in the family
Shonali is, in fact, Rajendra’s youngest (of two) daughter…
As for the elder daughter, she is Rashmi Pachauri – and often calls herself Rashmi Pachauri-Rajan. She, like her mother, Dr Saroj Pachauri, works on population issues, the latter being regional director, South and East Asia Regional Office, Population Council, working out of New Delhi…
http://eureferendum.blogspot.com/2010/01/keeping-it-in-family.html

also worth noting Schneider and Ehlich in the Acknowledgements:

PNAS: Global demographic trends and future carbon emissions
ACKNOWLEDGMENTS
…P. Ehrlich, S. Schneider, and D. Kennedy for guidance and support during
development of the original version of the PET model. Funding was provided
by the National Science Foundation, a European Young Investigator’s award
(to B.C.O.) and the Hewlett Foundation. Funding was provided for early
stages of the analysis by the Department of Energy and the Environmental Protection Agency.
http://www.pnas.org/content/early/2010/09/30/1004581107.full.pdf+html


2 posted on 10/13/2010 12:52:26 PM PDT by Ernest_at_the_Beach ( Support Geert Wilders)
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To: All
More from the comments:

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Max Hugoson says:

October 12, 2010 at 7:11 pm

Having worked in Nuclear Power for 20 years, I can assure you that THE ABILITY TO “POWER THE WORLD” exists! If you are worried about the U235 problem, use a THORIUM CYCLE and things are peachy.

Of course, you have to have an “educated” enough populace to run such establishments.

I found, sadly, towards the end of my tenure in nuclear, that in the USA the “career office politicians” who run the electric utilities have an AVERSION to nuclear power BECAUSE it takes too much “intelligence” to run it.

Surprisingly I have been dragged KICKING AND SCREAMING to the conclusion that the “nuclear option” has to come from the “top down”, as in France. With a program run from the FEDERAL LEVEL. And, (shock, horror!) the “Feds” do need to be able to essentially CRUSH the opposition. Although I think in France that hasn’t been hard to do…as the opposition in nominal, and the average French 6th form (or grader) can be put to a chalkboard (or Power Point!) and asked to outline the nuclear power process and nuclear fuel cycle, and they can do it.

In the good old USA 6th graders can stretch a thin rubber latex device on a cucumber. Amazing!

3 posted on 10/13/2010 12:55:34 PM PDT by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

MORE LIES.

LLS


4 posted on 10/13/2010 1:01:05 PM PDT by LibLieSlayer (WOLVERINES!)
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To: Ernest_at_the_Beach
Photobucket
5 posted on 10/13/2010 1:07:10 PM PDT by yefragetuwrabrumuy
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To: Ernest_at_the_Beach

Islamic Terrorism and Fertility

The demographic sophisticates who read this column know that the population bomb has fizzled, that the world's population will never double again, and that birthrates are falling faster and farther than anyone imagined a half century ago. But they also know that there are still pockets of moderately high fertility in the world, including a number of Muslim countries, and some wonder if such places could be breeding grounds (forgive the expression) for Islamic terrorism. I know they wonder, because every time I give a population talk someone in the audience raises the question of whether Islamic fertility contributes to Islamic fanaticism.

They are not alone. Many security experts, like Clinton's Deputy National Security Advisor Samuel Huntington, have long believed that “excessive” population growth in Muslim countries is a national security threat to the West. They argue that large cohorts of young people radicalize their societies, contribute to civil unrest and cross-border conflicts and, most importantly for us, provide an endless supply of new recruits for terrorist training camps.

But is it true that we will face continual terrorist attacks if Muslim countries do not reduce their numbers of young people? Do we need to be aggressively pursuing population control programs in the Muslim world in order to combat international terrorism?

The answer to both questions is no. The first problem with such proposals is that the numbers don't add up. It is true that majority Muslim countries cut a huge swath across northern Africa and Asia, stretching from Morocco to the southern Philippines, and from Chechnya down to Nigeria. But the average number of children born to the world's estimated 1 billion Muslims has been cut in half over the past 30 years, and is still falling, especially in the largest Muslim countries of Indonesia (243 million, 2.3 children), Pakistan (184 million, 3.3 children), and Bangladesh (156 million, 2.7 children), Egypt (80 million, 3.0 children), and Turkey (77 million, 2.2 children). In Iran (76 million), the fierce preaching of the Mullahs against large families (and in favor of sterilization) has resulted in families averaging fewer than two children.

Some might object that, as most anti-Western terror groups come from Arab-speaking Muslim countries, we ought to more narrowly focus on birthrates in North Africa and the Middle East. The problem with this thesis is that several of these countries too, including Tunisia, Libya and Lebanon, have already fallen to sub-replacement fertility. The U.S. Census Bureau estimates that others, such as Algeria, will follow in the next few years. If demography were truly destiny, then why is Lebanon, with its anemic birthrate, home to so many terrorist organizations and operatives?

And how is it that dying countries are even capable of aggression? I think here of Serbia in the nineties which, despite an anemic birthrate and an aging population, launched a violent war of aggression against neighboring ethnic groups, the Kosovars in particular. The Serbs were all supposed to be sitting in their rocking chairs, not engaging in savage ethnic cleansing.

Demographics simply do not have much predictive ability when it comes to predicting social instability, wars, terrorism, and the like. The late Julian Simon, who surveyed the literature on population and war, concluded, “the data do not show a connection between population growth and political instability due to the struggle for economic resources. The purported connection is another of those notions that everyone … knows is true, and that seems quite logical, but has no basis in factual evidence.”

Osama bin Laden does not mastermind terrorist attacks against the U.S. because he's one of over 50 children, but because he grew up in a poisonous atmosphere of anti-Israel and anti-American propaganda and, unlike most of his siblings, decided to act on it. Neither does the terrorizing of civilian populations through random attacks have anything to do with demography. It is a weapon of our modern political age, adopted by Islamic fanatics for their own purposes.

Middle Eastern dictators, for whom the maintenance of civil order—and hence their own position—is the top priority, are happy to blame their countries' poverty and backwardness on outside forces. That's why they allow vicious and one-sided attacks on Israel, the U.S., and the West to dominate the state-run media, the schools, and the religious institutions. Terrorism is not bred by too many babies, but by dictators who encourage hatred of the wider world, lest their own people turn on them and rend them.


6 posted on 10/13/2010 1:38:53 PM PDT by Brian Kopp DPM
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To: yefragetuwrabrumuy

I recognize Ehrlich, and James Hansen. However, at least Hansen has admitted the right thing about nuclear energy. Can’t say that the nuclear part is full redemption for him though. Who is Lysenko, however? He doesn’t seem all that notorious to me.


7 posted on 10/13/2010 2:26:32 PM PDT by Morpheus2009
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To: Ernest_at_the_Beach
I've already heard this joke.

The punchline is "Who's gonna believe a Sex poodle?".


Frowning takes 68 muscles.
Smiling takes 6.
Pulling this trigger takes 2.
I'm lazy.

8 posted on 10/13/2010 2:34:36 PM PDT by The Comedian (Keep talking while I reload...)
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To: Morpheus2009

http://en.wikipedia.org/wiki/Trofim_Lysenko

Lysenko was a con artist who persuaded Joseph Stalin to put him in charge of all Soviet biological sciences, based on his crackpot theories.

“Scientific dissent from Lysenko’s theories of environmentally acquired inheritance was formally outlawed in 1948, and for the next several years opponents were purged from held positions, and many imprisoned.”

But there is so much more to his story. Well worth the read.

As far as Hansen goes, he is one of the driving forces behind the Man Made Global Warming “theory”, in his position as head of the Goddard Institute of Space Studies at NASA. He profoundly manipulated data to support his notions, and eliminated any dissenting scientific voices from positions of authority.

Filling every important job with true believers, when W. Bush tried to fire him, they raised enough ruckus to protect their boss. So there he remains.

As an aside, early on in his career, he created very impassioned theories in support of global cooling. Importantly, the political solutions he proposed for that non-crisis are identical to the ones he proposes for his current fantasy.


9 posted on 10/13/2010 3:52:38 PM PDT by yefragetuwrabrumuy
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To: Ernest_at_the_Beach
Sounds like the French are well educated in the sciences. This fits with a survey reported in Scientific American, showing that the French are the most skeptical of europeans concerning manmade global warming. Guess education pays doesn't it.
10 posted on 10/13/2010 6:29:00 PM PDT by hinckley buzzard
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To: Ernest_at_the_Beach; 11B40; A Balrog of Morgoth; A message; ACelt; Aeronaut; AFPhys; AlexW; ...
DOOMAGE!

Global Warming PING!

You have been pinged because of your interest in environmentalism, alarmist wackos, mainstream media doomsday hype, and other issues pertaining to global warming.

Freep-mail me to get on or off: Add me / Remove me

Please ping me to all note-worthy threads on global warming.

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11 posted on 10/13/2010 7:19:22 PM PDT by Tolerance Sucks Rocks (Muslims are not the problem, the rest of the world is! /s)
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To: Ernest_at_the_Beach

I seem to remember learning about nuclear fission and fusion during the sixth grade. I distinctly remember the fission products of Uranium 235 as Rubidium 90 ,Cesium 143 and 3 neutrons. This was in 1972. Does anyone else of this age have similar memories?


12 posted on 10/14/2010 7:39:08 AM PDT by jmcenanly
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To: jmcenanly
You might be right....found this :

Nuclear Fission

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13 posted on 10/14/2010 11:38:20 AM PDT by Ernest_at_the_Beach ( Support Geert Wilders)
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