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Natural Environment How Human History has been impacted by the environment, science, nature, geography, weather, and natural phenomena


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Old December 30th, 2017, 06:05 AM   #11

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Originally Posted by GogLais View Post
I’m not qualified to judge the accuracy of the sites but you might want to Google “sudden ice age”.
Well, even if those sites are correct, it means that life prevailed in the past with less knowledge and technology, so we should be able to do so as well.
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Old December 30th, 2017, 06:22 AM   #12

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I love your idea of borrowing underground and using thermal energy. I don't think such a survive system could be large enough to have a viable reproductive population unless we intentionally met up with tribes from other cave systems as all tribal people seemed to do. My imagination is going wild with possibilities.

Now, what is the food source?
Food would be more limited, but there ways. For instance, we know that glow lights can be used for plants, so as long as we can generate electricity we could have some plants. The temperature would be stable, so there could be animals down there with people. Rabbits, for instance, don't eat that much, nor do they need a lot of room, and still reproduce a lot. We would need bees or something for pollinating, but they would also be a source of honey. We would probably end up eating insects.

It certainly would not be easy, but I think it is possible. Still, It's something I hope we don't have to face.
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Old December 30th, 2017, 07:19 AM   #13

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To explain the "ice ages" [pay attention that we are still in a ice age ... ice caps at the poles are still there ...] scientists have thought to everything and to the contrary of everything [even interstellar clouds].

I was saying that we are still in a glacial age since technically ice is still well present on this planet.

So that, if we want to be accurate, we should talk about periods of maximum extension of the polar ice caps.

This would make the entire matter less mysterious.

Ice reflects light and if the salinity in Northern Atlantic Ocean gets altered there will be more and more ice reflecting light = avalanche effect.

The equilibrium of the Northern hemisphere is delicate and just a meteorite falling on the right point could cause a wide flood of fresh waters towards the Ocean = less salinity = more ice = more reflected sun light = more ice ...
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Old December 30th, 2017, 12:12 PM   #14

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There are predictions that a new 'Little ice Age' is imminent:

https://www.sciencedirect.com/scienc...28045886000173

https://astronomynow.com/2015/07/17/...e-age-by-2030/
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Old December 31st, 2017, 04:27 AM   #15
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Originally Posted by AlpinLuke View Post
To explain the "ice ages" [pay attention that we are still in a ice age ... ice caps at the poles are still there ...] scientists have thought to everything and to the contrary of everything [even interstellar clouds].

I was saying that we are still in a glacial age since technically ice is still well present on this planet.

So that, if we want to be accurate, we should talk about periods of maximum extension of the polar ice caps.

This would make the entire matter less mysterious.

Ice reflects light and if the salinity in Northern Atlantic Ocean gets altered there will be more and more ice reflecting light = avalanche effect.

The equilibrium of the Northern hemisphere is delicate and just a meteorite falling on the right point could cause a wide flood of fresh waters towards the Ocean = less salinity = more ice = more reflected sun light = more ice ...
The fact that there are glaciers does not mean we are in an ice age. Glaciers are only what remains of a past ice age. It is variations in the Earth's orbit that influence climate. It is not one thing that leads to an ice age, but several cycles happening at the same time, that leads to going into an ice age or coming out of an ice age. Our movement out of an age is now a movement of going into an ice age, only the evidence of being the ice age phase of the cycle has been counteracted by greenhouse gases keeping the planet warmer than it would be without the greenhouse gases.

Do you remember the 2000 excitement about the planets aligning? It is a change in our alignment with other planets and our orbit, that determines if we are going into or out of an ice age. Not a measurement of ice on earth.

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The Earth's rotation around its axis, and revolution around the Sun, evolve over time due to gravitational interactions with other bodies in the solar system. The variations are complex, but a few cycles are dominant.[2]

The Earth's orbit varies between nearly circular and mildly elliptical (its eccentricity varies). When the orbit is more elongated, there is more variation in the distance between the Earth and the Sun, and in the amount of solar radiation, at different times in the year. In addition, the rotational tilt of the Earth (its obliquity) changes slightly. A greater tilt makes the seasons more extreme. Finally, the direction in the fixed stars pointed to by the Earth's axis changes (axial precession), while the Earth's elliptical orbit around the Sun rotates (apsidal precession). The combined effect is that proximity to the Sun occurs during different astronomical seasons.
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Old December 31st, 2017, 05:54 AM   #16
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Sunspot activity complicates things even more. It is the main reason I have been reluctant to fully accept the present explanation of global warming which did not take into consideration solar activity. However, John Gribbin wrote in his book "BLINDED BY THE LIGHT" 1991...

"That effect is itself a result of human activities, including burning of coal and oil and destruction of the tropical forests. Climate experts predict a continuing buildup of carbon dioxide in the air, warming the globe as we move into the twenty-first century. With solar and greenhouse effects combing, the rise in temperatures could be more rapid than any of the climate experts calculated."

That indeed appears to be what happened. However, as you said, this solar cycle can also lead to planet cooling. However, I think the greenhouse gases will prevent an ice age at least until we run out of fossil fuel? I think we will be lucky if things cool off enough to avoid the devastation that has been predicted. On this, I would not mind being proven wrong, but given the information available to us now, I don't think it is a good idea to have children until for sure our planet cools down.

John Gribbin and Jose Arguelles both speak of the sun breathing. John Gribbin speaks of this in terms of measuring the sun and that the solar activity is greater when the sun is small and decreases with the sun is large. Jose' Arguelles is known for relating this information with the Mayan explanation of life. That gets very controversial. According to Jose' Arguelles, sun activity affects more on earth than our climate. It also affects our spiritual progress and connects us with the universe and universal consciousness. That is a little outside the boundaries of this thread.
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Old January 1st, 2018, 08:50 PM   #17
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Oxygen levels in the atmosphere have not a always been at 21%.
They have been slightly higher ( too high and you get spontaneous forest fires ), and have been much lower ( much below 18% human suffocation levels ).
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Old January 1st, 2018, 09:43 PM   #18

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It is amusing to see the Cult of Warming having its doctrine overturned by inconvenient facts. It must now do a quick reinterpretation in order to convince the acolytes that their faith is not misplaced...
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Old January 3rd, 2018, 04:25 AM   #19
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It is amusing to see the Cult of Warming having its doctrine overturned by inconvenient facts. It must now do a quick reinterpretation in order to convince the acolytes that their faith is not misplaced...
What? There is no question that man-made carbon dioxide is causing global warming, and the degree of this warming is causing serious problems. It is preventing us from experiencing the cooling we should be experiencing as we move into the ice age period and there are benefits to that, but we will lose this benefit when we exhaust the fossil fuels. That will happen in a few generations.

Given what we know, it might be best to conserve the fossil fuels and prevent overheating the planet while extending the time we can avoid the effects of the age ice period. Being divisive as though those who understand the science are pitted against those who do not, is just stupid. We all live on this planet and we might want to apply our intelligence to that.
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Old January 3rd, 2018, 06:29 AM   #20

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Laser lunar ranging is a new measurement as of Apollo moon landings.

(I believe they set a reflector dish, but don't take my word on it)

It is possible according to space.com, and the Royal Society, that the moon used to orbit venus.

The Earth, is molten in the core due to tidal forces. As the moon orbits, it warms the core with, so-called, "gravital pull", so the snowball earth may have cooled once the moon generated enough geomagnetic pressure for heat.
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