Nature Ice Age , Sahara desert, Earth's wobble and the Gulf Stream

While we are at Sahara desert I think the Egyptians should think about creating an inland lake by Libyan desert depression by opening a channel to the Mediterranean Sea. There are depressions below sea level in various parts of the world vis-a-vis:

Egypt - Libyan desert Depression

The Egyptians are already doing that. It is bound to fail though. The evaporation will cause an increase in salt content.

http://en.wikipedia.org/wiki/Toshka_Lakes
 
The Egyptians are already doing that. It is bound to fail though. The evaporation will cause an increase in salt content.

There is a difference. The Toshka Lakes would be replenished by the Nile. The lakes would would not form as the evaporation rate exceeds the water inflow to the lakes.

My idea to create the inland lake takes Mediterranean Sea water to fill the depression. It is ocean water so it will not dry up. From the African Sahara video this depression was probably one of the mega lakes when the Sahara was green. However, there is a downside to my proposal. The aquifers which contain fresh water from the ancient mega lakes would be tainted with salty sea water. Anyway, it is estimated the Sahara will turn green in 15,000 years.
 
Here is what I was thinking over the weekend. As the Tropic of Cancer moves south the northern hemisphere will lose a certain amount of sunshine and we think it won't be much. That is very wrong. Here is a rough estimate:

It takes 6,833 years to move the Tropic of Cancer 1 degree. 1 degree is 70 miles or 70 * 5280 feet. So in one year the sun would drop (70 * 5280)/6833 = 54 feet. In one year the northern hemisphere loses 54 feet of sunshine. We can laugh. But look at it this way.

54 feet by the circumference of the earth which is 25,000 miles. Imagines 25,000 miles broken into 30 feet slices. 54 feet by 30 feet is the size of a home. (25000 * 5280)/30 = 4,400,000 homes. That is 4 cities of 1 million moving south in one year. In 6,833 years (6833 * 4400000) = 30,065,200,000 or 30,000 cities moving south. The heat from these "sun" homes are heated to tropical temperatures i.e. 90 degrees F.
 
No.CountriesPopulation x million
1Canada33
2Russia140
3Norway8
4Sweden10
5Finland12
6Denmark8
7Poland50
8Ukraine40
9Belarus30
10Germany80
11France70
12UK60
13Ireland8
14North Korea30
15South Korea50
16Japan100
17Northern China500
18Total1229

yearsolar cities
14.4
28.8
313.2
417.6
522
626.4
730.8
835.2
939.6
1044
1044
2088
30132
40176
50220
60264
70308
80352
90396
100440
110484
120528
130572
140616
150660
160704
170748
180792
190836
200880
210924
220968
2301012
2401056
2501100
2601144
2701188
2801232
2901276
300
1320
3101364
3201408
3301452
3401496
3501540
3601584
3701628
3801672
3901716
4001760



The above are countries likely to have homes heated in winter to 72 degrees F. The population figures are rough. Now suppose each person had a home so the total winter heating homes would be 1,229,000,000 homes. The human homes do compensate very well for the yearly loss of the sun's radiation. But it equal a century and a half of heat loss from the sun's move to the south i.e. the equivalent "solar" homes after a century is 440,000,000 which 440 million homes so global warming from human cities would still keep the northern hemisphere warm. It will definitely be colder in 300 years as the heat loss is (4.4 million * 300) = 1,320 million, or 1.32 billion, "solar" homes lost.
 
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The Sahara video mentioned that it oscillates every 20,000 years from green to desert. It turned to full desert 5,000 years ago and in 15,000 years it will turn green. The Sahara turned into desert at the apex or high point of the Milankovitch cycle i.e. when the Tropic of Cancer was 24.5 degrees. The times since 24.5 degrees to today at 23.5 degrees is 6,833 years. The time to 21.5 degrees is 13,666 years from now. The time from 24.5 to 21.5 is 21,000 years. so the Sahara turns green when the tropical region is hottest. Probably the summer rains or the monsoons start around 22.5 degrees. It takes 6,833 years by the time the Tropic of Cancer is at 21.5 degrees. What this means is that it takes roughly 5,000 years to turn the Sahara desert to green as regular monsoon rains begin falling. But it lasts until the Tropic of Cancer reaches 23.5 degrees when the northern hemisphere once again gets sunshine but the sun is directly over the Sahara so it will start drying up and the monsoon rains subside and disappear.
 
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What does it mean when the tropics get warmer? There are three effects.

1. More cloud cover means sunlight is deflected so loss of heat.
2. Warmer tropical ocean temperatures -> possibly warmer Gulf Stream and more hurricanes?
3. Q, heat = mass x specific heat x temperature difference means the faster heat loss to space. CO2 may help as it captures long wave radiation while short wave radiation escape.

The last time when the Tropic of cancer was at 22.5 degrees (41,000 - 6,833 = 34,167 years ago) there was the just before the LGM.

Beyond the last Milankovitch cycle at (41,000 + 34,167 = 75,167 years ago) it wasn't so ice cold and mammoths and mastodons were killed in Colorado as shown in the Ice Age death trap video.
 
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A new study of East Africa’s ancient climate now reveals that lush tropical Africa suffered from severe megadroughts between 135,000 and 75,000 years ago, which may have forced early humans to look for greener pastures.

They found that lake water levels dropped by as much as 600 meters, or about 95 percent of the lake’s volume, during two periods between 135,000 and 75,000 years ago

degreeyear differentialtime, BP
22.5
6,833.33
21.5150,333.33Hot equator -> drier tropics
6,833.33warming
22.5143,500.00warming
6,833.33warming
note23.5136,666.67warming
note6,833.33warming
note24.5129,833.33warm period
note6,833.33125,000 eccentric orbit -> drier tropics?
note23.5123,000.00cooling
note6,833.33cooling
note22.5116,166.67cooling
note6,833.33cooling
note21.5109,333.33Hot equator -> drier tropics
note6,833.33warming
note22.5102,500.00warming
note6,833.33warming
note23.595,666.67warming
note6,833.33warming
note24.588,833.33warm period
note6,833.33cooling
note23.582,000.00cooling
note6,833.33cooling
note22.575,166.67cooling
6,833.33(74,000 years ago)Super volcano eruption Toba
21.568,333.33Hot equator -> drier tropics
6,833.33warming
22.561,500.00warming
6,833.33warming
23.554,666.67warming
6,833.33warming
24.547,833.33warm period
6,833.33cooling
23.541,000.00cooling
6,833.33cooling
22.534,166.67cooling
6,833.33cooling
21.527,333.33Hot equator -> drier tropics
6,833.33warming
22.520,500.00warming LGM
6,833.33warming
23.513,666.67warming
6,833.33warming Dryas
24.56,833.33warm period
6,833.33cooling
Today23.50cooling
6,833.33cooling
22.5-6,833.33cooling
6,833.33cooling
21.5-13,666.67Hot equator -> drier tropics
6,833.33
22.5


Lake Malawi is situated within the tropical area, south of the equator close to 20 degrees.

The 1 degree calculation is corrected as follows from excel spreadsheet:


radian
sin
earth's radius, milesdistance, miles
1
0.01750.0175400069.81


http://www.geotimes.org/dec07/article.html?id=nn_migration.html

http://www.worldatlas.com/webimage/countrys/africa/mw.htm
 
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Early humans. What I find disturbing is that the geographical maps used are of the 20th century variety and not at the period for the humans at the Ice Age. Sundaland is not shown and lower sea levels not indicated and alternating Sahara desert and green Sahara every 20,000 years not shown. No wonder they twist and turn to explain how humans got here from there with ocean or sea shown when actually there were land bridges and green grassland instead of barren desert.

http://essayweb.net/history/ancient/prehistory.shtml
 
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74,000 years ago Toba super volcano in Indonesia erupted. The Ice Age may have damped some of the damage from ash and heat in the northern hemisphere. It would have aided in warming the earth as the ash covered the snow and ice and reduced the deflection of the sun's radiation.

http://www.bradshawfoundation.com/journey/toba2.html

http://www.sciencedaily.com/terms/toba_catastrophe_theory.htm

http://www.livescience.com/29130-toba-supervolcano-effects.html

http://toba.arch.ox.ac.uk/

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

These reports or studies don't seem to realize there was an Ice Age 70,000 years ago. They talk of winter created from ash and drop of temperature. The situation is opposite as it was in the cold part of the Ice Age.

One must also consider the deeper the earth or core sample comes from the thinner it gets as the earth pressure increases with greater depth. The deeper and older samples are compressed more thus slightly thinner so estimates could be off a bit if they measure only by depth and not carbon dating.
 
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Ha, ha scientists sometimes follow non-scientists. More than ten years ago in another forum I suggested that when the dinosaur-killing asteroid hit the earth it created hydraulic pressure in the earth's interior which was molten with an iron interior. As the iron is so heavy the pressure bypassed the molten iron interior around it and continued on to the other side where India was and initiated the Deccan traps. It might have released the Indian subcontinent from the mantle (new idea) and let India move at 20 inches per year towards the Eurasian plate to collide with it and create the Himalayas. Now the following article covers this aspect of my idea.

http://www.sciencedaily.com/releases/2015/04/150430170755.htm

I remember an article I submitted to the Vancouver Sun editor for readers' letters where I proposed that bacteria, germs regenerate every two seconds. This quick regeneration accounts for the super bugs as two hours accounts for 3600 generations in a diluted solutions containing antibiotics allows some stronger germs to survive and regenerate. The off springs grown in this weaker solution have greater resistance to the antibiotics. There are people who will skimp on chemicals thus the dangers of bugs gaining the upper hands stems from this parsimony. Two weeks after my submittal the Vancouver Sun had a scientist from UBC Medical Sciences write an article on my topic. What a dishonest editor. Maybe she hates Chinese. Of course, people always steal from the Chinese. We don't complain. We have plenty of ideas anyway.
 
I noticed that Haplogroup C and D are mostly absent from the super volcano Toba eruption ash fallout region. Early Hg. C was found in Spain and in Mongolia while is found D in Japan and Tibet. They could the ones who spread first out of Africa along the coastal route and were probably wiped out by the Toba eruption (74,000 years ago). During the Ice Age the environment did not cause a lot of genetic mutations thus the age of DNA might be older. Remember the African American has Hg. A0 which was 200,000 years old.
 
Andaman Islanders - Haplogroups D, C and F

 
"Global warming will cause Ice Age" ( I am not sure of the title)

The Ice Age as shown is the concentration of sunlight towards the tropics and snow and ice cover that brings Ice Age.

http://www.metatech.org/07/ice_age_global_warming.html

There is a lot of useful information in this report.
 

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