Quote:
Originally Posted by Freak80
[A]Unfortunately, nature does not bend to the wishes of ideologues. There's not enough farmland and water to support the population numbers you wish to see. We can barely feed the people we have now, let alone billions more.
[b] AGW will eliminate much of the farmland and water resources we have now. Let me guess, you think that AGW is a conspiracy by Al Gore?
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[A] Thank you for making my point. NATURE alone cannot do a thing. HUMAN BEINGS can engineer the planet to support billions more.
Here's an example of "engineering" agriculture to get up to 5x improvement in yield per surface area.
Vertical plane versus horizontal plane aeroponics
https://www.youtube.com/watch?v=f5VU...ature=youtu.be
PERMACULTURE and SUNLIGHT
Obscure but interesting point - - - "solar saturation"
(
Food and Permaculture by David Blume)
Food and Permaculture | Permaculture & Alcohol Can Be A Gas
and find it corroborated in the following PDF.
Editorial: The Nonsense of Biofuels - Michel - 2012 - Angewandte Chemie International Edition - Wiley Online Library
Solar saturation is the point at which a plant's photosynthetic machinery is overwhelmed by excess sunlight and shuts down.
...........
" Photosynthesis is most efficient at low light intensities. It is already saturated at 20% of full sunlight and 80% of the light is not used."
...........
In polycultural permaculture (versus monoculture farming), plants shade each other, and thus out perform the "full sun" crops.
When it becomes more important to generate more food per surface area, this fact should be taken into consideration.
In other words, if one used VERTICAL PLANE agriculture, FIVE TIMES the surface area of the corresponding horizontal plane, the 80% reduction in light would not impair the photosynthesis of the plants.
This article claims 3,333 people per acre supported by intensive agriculture:
http://www.splendidtable.org/story/how-to-feed-10000-people-from-food-grown-on-3-acres-in-the-city
USA : 3,794,101 sq mi, 640 acres to a sq.mi, or 2,428,224,640 acres.
If the population of the USA jumped from 320 million to 1.2 billion, how many acres would be needed to feed them?
360,036 acres... if we can feed 3,333 per acre. Too optimistic?
Let's cut that by a factor of 10.
3,600,360 acres needed.
Cut that back by a factor of 10.
36,003,600 acres needed. . . Still have plenty of land.
Are we REALLY running out of FARMLAND?
[b] AGW? What anthropogenic global warming? The cooling trend since 1990s? Are you one of those Karbonites that believe in sequestering carbon? Do you believe that the atmosphere is TRAPPING MORE HEAT?
The Lack Of Greenhouse Gases
...
Is the Earth really in danger of HEATING UP from "Greenhouse gases"?
Let us look at our neighbor, which does not have an atmosphere.
...
The lunar surface (equator) -
minimum : 100 K (-279.67 F)
maximum : 390 K ( 242.33 F)
http://en.wikipedia.org/wiki/The_moon
Earth
minimum :184 K (-128.47 F)
maximum : 330 K (134.33 F)
http://en.wikipedia.org/wiki/Earth
By observation, one may note that despite almost equal energy input from the Sun, the Earth enjoys a substantial COOLING effect
(-60K) from the presence of its atmosphere.
Now, let me lead you to a KARBONITE SITE:
Does CO2 always correlate with temperature (and if not, why not?)“A tiny amount of CO2 and other greenhouse gases, like methane and water vapour, keep the Earth’s surface 30°Celsius (54°F) warmer than it would be without them. We have added 42% more CO2 but that doesn't mean the temperature will go up by 42% too.”
WAIT - the Earth with atmosphere is
60° K cooler than the Moon without an atmosphere.
But they’re saying the greenhouse gases are keeping us 30 K warmer (K and C are the same interval), so we should be 90 K cooler without the “greenhouse” gases.
(Huh?)
....
Much of the radiation from the Earth is emitted by the atmosphere, not the Earth's surface. Based on albedo, the atmosphere is definitely COOLING the planet's surface. (Earth is 60° K cooler than the Moon, despite almost equal insolation)
Earth’s albedo is about 0.30, while the Moon’s albedo is only about 0.11.
ALBEDO - The fraction of incident electromagnetic radiation reflected by a surface, especially of a celestial body.
. . .
Much of the radiation from the Earth is emitted by the atmosphere, not the Earth's surface. Based on albedo, the atmosphere is definitely COOLING the planet's surface. (Earth is 60° K cooler than the Moon, despite almost equal insolation)
If you prefer fahrenheit :
Earth max : (134.33 F)
Space station max : (250 F)
Lunar surface max : ( 242.33 F)
OMG - People believe the EARTH is OVERHEATING from its atmosphere?
. . .
http://wstannard.wordpress.com/the-g...nergy-balance/One of the comments summed it up : “I postulate => the net result of GH gasses is to cool the Earth!”
Come on, folks, let’s albedo friends.
Coincidentally, the greenhouse gases have a higher
emissivity that means they COOL the planet even more.
D’oh!