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Sell your sailplane before 2030



 
 
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  #1  
Old July 20th 15, 05:59 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default Sell your sailplane before 2030

In 1804 the population of the earth was 1 billion people. It took 123
years to add another billion, then 33 years, then 14, then 12 to get the
population up to 6 billion by 1999 (source
https://www.learner.org/courses/envsci/unit/text.php?unit=5&secNum=4).
Now the human population is roughty 10.8 billion people (source
http://populationpyramid.net/world/2015/)!

I don't suppose all those people blowing CO2 into the atmosphere has
anything to do with this?

On 7/19/2015 10:08 PM, Eric Greenwell wrote:
Bruce Hoult wrote on 7/16/2015 9:38 PM:
On Tuesday, July 14, 2015 at 9:50:38 AM UTC+12, Martin Gregorie
wrote:
On Mon, 13 Jul 2015 14:09:42 -0700, David Hirst wrote:

A huge reduction in solar output is predicted to occur by
then.

Thankfully, they mean sunspot activity, not heat output, though
the lack of sunspots will likely cause some noticeable weather
changes.
(http://www.space.com/19280-solar-act...h-climate.html)

There may well be a connection: the Maunder Minimum, when there
were very few sunspots from 1645 to about 1715, coincided with the
middle part of the Little Ice Age (1350 to about 1850), during
which Europe and North America experienced very cold winters.
However, as AFAIK there was no good understanding of either IR or
UV radiation during the Maunder Minimum nor any reliable means of
measuring the amount of solar energy reaching the Earth, any
association between the two events is at best supposition, but
should it happen again we are now well enough instrumented to
discover what, if any, mechanism connects the two.


The theorized mechanism is fewer sunspots - less solar wind - more
cosmic rays reaching earth - more nucleation of aerosols - more
clouds - higher reflectivity - more energy radiation into space -
lower temperatures.

The key link in this chain (more cosmic rays - more nucleation of
aerosols) has been experimentally verified at CERN.

http://en.wikipedia.org/wiki/Henrik_...imat e_change


IPCC reports state that cloud reflectivity and proportion of cloud
cover is one of the most important and yet least understood aspects
of the global climate system.


"While the link between cosmic rays and cloud cover is yet to be
confirmed, more importantly, there has been no correlation between
cosmic rays and global temperatures over the last 30 years of global
warming. In fact, in recent years when cosmic rays should have been
having their largest cooling effect on record, temperatures have been at
their highest on record."

http://www.skepticalscience.com/cosm...termediate.htm




--
Dan Marotta

  #2  
Old July 20th 15, 08:09 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 146
Default Sell your sailplane before 2030

On Monday, July 20, 2015 at 12:59:45 PM UTC-4, Dan Marotta wrote:
In 1804 the population of the earth was 1 billion people.* It took
123 years to add another billion, then 33 years, then 14, then 12 to
get the population up to 6 billion by 1999 (source).*
Now the human population is roughty 10.8 billion people (source)!



I don't suppose all those people blowing CO2 into the atmosphere has
anything to do with this?


Dan Marotta


That's a good question! The CO2 that people exhale is the product of
metabolism; the food that they eat is combined with Oxygen to produce
water, CO2, and energy. So, it's Carbon that was in the system to
start with.
  #4  
Old July 20th 15, 10:33 PM posted to rec.aviation.soaring
SoaringXCellence
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Posts: 385
Default Sell your sailplane before 2030

It's all carbon that was in the system to start with, Some of it has been locked down for a while.
  #5  
Old July 20th 15, 10:52 PM posted to rec.aviation.soaring
Eric Greenwell[_4_]
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Posts: 1,939
Default Sell your sailplane before 2030

Dan Marotta wrote on 7/20/2015 9:59 AM:
In 1804 the population of the earth was 1 billion people.� It took 123
years to add another billion, then 33 years, then 14, then 12 to get the
population up to 6 billion by 1999 (source
https://www.learner.org/courses/envsci/unit/text.php?unit=5&secNum=4).� Now
the human population is roughty 10.8 billion people (source
http://populationpyramid.net/world/2015/)!

I don't suppose all those people blowing CO2 into the atmosphere has
anything to do with this?


You suppose correctly: The added CO2 clearly comes from fossil fuel
sources, as determined by isotopic analysis of the CO2 in the
atmosphere. There is no controversy about where the increased CO2 is
coming from:

http://www.skepticalscience.com/its-...termediate.htm

There is another way to know this: all the carbon in our bodies comes
from plants; when we exhale, we are simply returning CO2 to the
atmosphere, where the plants we ate (or the animals we ate) got it in
the first place. This article speaks directly to that point:

http://www.skepticalscience.com/brea...on-dioxide.htm

Climate is a fascinating subject, in good part because a lot of it is
non-intuitive until you study it for a while.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to
email me)
- "A Guide to Self-Launching Sailplane Operation"

https://sites.google.com/site/motorg...ad-the-guide-1
- "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm

http://soaringsafety.org/prevention/...anes-2014A.pdf

 




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