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Old July 20th 15, 10:33 PM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default Sell your sailplane before 2030

The earth is a closed system except for meteors, asteroids, etc. We are
all made of natural resources, we consume them, and we excrete them.

I say more Ferraris and fewer people!

On 7/20/2015 1:09 PM, wrote:
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.


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Dan Marotta