Non-IT News Thread
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High-fidelity record of Earth's climate history puts current changes in context
Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which the researchers dubbed Hothouse, Warmhouse, Coolhouse, and Icehouse. These major climate states persisted for millions and sometimes tens of millions of years, and within each one the climate shows rhythmic variations corresponding to changes in Earth's orbit around the sun.
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@JaredBusch said in Non-IT News Thread:
High-fidelity record of Earth's climate history puts current changes in context
Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which the researchers dubbed Hothouse, Warmhouse, Coolhouse, and Icehouse. These major climate states persisted for millions and sometimes tens of millions of years, and within each one the climate shows rhythmic variations corresponding to changes in Earth's orbit around the sun.
That is very interesting. I have long thought that humans aren't affecting the climate as much as we thought. I am sure we are a little. However, we really can't be sure how much until we have more data from the Sun. The Sun has solar cycles that it goes through. Some are shorter like every 9-10 years I think. There are longer ones though that are still being measured, such as hundreds or thousands of years long. These solar cycles have decreased periods of electromagnetism at their beginnings and increased levels at the end of the cycles. So what this means is that at the beginning more radiation (which is light in the various spectrums and ultimately heat) is getting to us from the Sun and warming the planet up and creating the hothouse effect. This eventually reverses and has the opposite effect where it corresponds to the icehouse effect because less radiation is getting through the magnetic field of the Sun.
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@jmoore said in Non-IT News Thread:
@JaredBusch said in Non-IT News Thread:
High-fidelity record of Earth's climate history puts current changes in context
Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which the researchers dubbed Hothouse, Warmhouse, Coolhouse, and Icehouse. These major climate states persisted for millions and sometimes tens of millions of years, and within each one the climate shows rhythmic variations corresponding to changes in Earth's orbit around the sun.
That is very interesting. I have long thought that humans aren't affecting the climate as much as we thought. I am sure we are a little. However, we really can't be sure how much until we have more data from the Sun. The Sun has solar cycles that it goes through. Some are shorter like every 9-10 years I think. There are longer ones though that are still being measured, such as hundreds or thousands of years long. These solar cycles have decreased periods of electromagnetism at their beginnings and increased levels at the end of the cycles. So what this means is that at the beginning more radiation (which is light in the various spectrums and ultimately heat) is getting to us from the Sun and warming the planet up and creating the hothouse effect. This eventually reverses and has the opposite effect where it corresponds to the icehouse effect because less radiation is getting through the magnetic field of the Sun.
You should read the article. They go into this just in the brief...
"Now that we have succeeded in capturing the natural climate variability, we can see that the projected anthropogenic warming will be much greater than that."
For the past 3 million years, Earth's climate has been in an Icehouse state characterized by alternating glacial and interglacial periods. Modern humans evolved during this time, but greenhouse gas emissions and other human activities are now driving the planet toward the Warmhouse and Hothouse climate states not seen since the Eocene epoch, which ended about 34 million years ago. During the early Eocene, there were no polar ice caps, and average global temperatures were 9 to 14 degrees Celsius higher than today.
Basically we aren't just affecting it a little. We're the primary reason behind this recent climate shift.
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@coliver said in Non-IT News Thread:
@jmoore said in Non-IT News Thread:
@JaredBusch said in Non-IT News Thread:
High-fidelity record of Earth's climate history puts current changes in context
Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which the researchers dubbed Hothouse, Warmhouse, Coolhouse, and Icehouse. These major climate states persisted for millions and sometimes tens of millions of years, and within each one the climate shows rhythmic variations corresponding to changes in Earth's orbit around the sun.
That is very interesting. I have long thought that humans aren't affecting the climate as much as we thought. I am sure we are a little. However, we really can't be sure how much until we have more data from the Sun. The Sun has solar cycles that it goes through. Some are shorter like every 9-10 years I think. There are longer ones though that are still being measured, such as hundreds or thousands of years long. These solar cycles have decreased periods of electromagnetism at their beginnings and increased levels at the end of the cycles. So what this means is that at the beginning more radiation (which is light in the various spectrums and ultimately heat) is getting to us from the Sun and warming the planet up and creating the hothouse effect. This eventually reverses and has the opposite effect where it corresponds to the icehouse effect because less radiation is getting through the magnetic field of the Sun.
You should read the article. They go into this just in the brief...
"Now that we have succeeded in capturing the natural climate variability, we can see that the projected anthropogenic warming will be much greater than that."
For the past 3 million years, Earth's climate has been in an Icehouse state characterized by alternating glacial and interglacial periods. Modern humans evolved during this time, but greenhouse gas emissions and other human activities are now driving the planet toward the Warmhouse and Hothouse climate states not seen since the Eocene epoch, which ended about 34 million years ago. During the early Eocene, there were no polar ice caps, and average global temperatures were 9 to 14 degrees Celsius higher than today.
Basically we aren't just affecting it a little. We're the primary reason behind this recent climate shift.
Oh ok, I see. I must have read it too fast then. Well I am certainly no authority but i disagree that humans are the main cause. Earth has gone through massive warming and cooling several time before humans were around. I think its more to do with solar cycles and how much radiation is getting through the Sun's magnetic field to us instead. Just my opinion though.
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@coliver I am sure we are affecting it a little but I don't think its near as much as some think. Not sure I stated my opinion clearly or not before.
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@jmoore said in Non-IT News Thread:
@coliver I am sure we are affecting it a little but I don't think its near as much as some think. Not sure I stated my opinion clearly or not before.
You may want to look at the mountains of research that disagree with your opinion, including the linked article. It's a fairly well known and accepted fact at this point that human activities are causing the current climate crisis.
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@jmoore said in Non-IT News Thread:
@coliver I am sure we are affecting it a little but I don't think its near as much as some think. Not sure I stated my opinion clearly or not before.
I think there's no way we aren't affecting it likely more than anyone thinks. The things we do are so dramatic, we should all be amazed the planet is still here as it is. From deforestation to atmospheric changes, it's implausible, even without doing any research, that we aren't affecting it like crazy. We've literally altered every factor that there is from flora to fauna to light refraction. It can't be questioned that we've affected it, it's like saying the earth isn't round. Nothing on the face of the planet or the atmosphere isn't completely changed by human interaction of the last few hundred years.
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@jmoore said in Non-IT News Thread:
Well I am certainly no authority but i disagree that humans are the main cause.
It's obviously hard to say which causes are main or secondary. But human impact is enormous and far different from just heating and cooling. If the issue was only that it was warmer, that's one thing. But it's that animals and plants that traditionally help to regulate temps are now gone shows that human impact has interrupted everything else. Might it have warmed up on its own, sure. Does it from time to time, of course. But that's separate from the fact that "humans have made it even warmer, and totally changed how the planet can respond to change."
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@jmoore said in Non-IT News Thread:
@JaredBusch said in Non-IT News Thread:
High-fidelity record of Earth's climate history puts current changes in context
Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which the researchers dubbed Hothouse, Warmhouse, Coolhouse, and Icehouse. These major climate states persisted for millions and sometimes tens of millions of years, and within each one the climate shows rhythmic variations corresponding to changes in Earth's orbit around the sun.
That is very interesting. I have long thought that humans aren't affecting the climate as much as we thought. I am sure we are a little. However, we really can't be sure how much until we have more data from the Sun. The Sun has solar cycles that it goes through. Some are shorter like every 9-10 years I think. There are longer ones though that are still being measured, such as hundreds or thousands of years long. These solar cycles have decreased periods of electromagnetism at their beginnings and increased levels at the end of the cycles. So what this means is that at the beginning more radiation (which is light in the various spectrums and ultimately heat) is getting to us from the Sun and warming the planet up and creating the hothouse effect. This eventually reverses and has the opposite effect where it corresponds to the icehouse effect because less radiation is getting through the magnetic field of the Sun.
Keep in mind that other planets, like Venus, have gone through similar changes and their local factors outweigh the solar factors by orders of magnitude, even while being far close (therefore more affected) to the sun itself.
Is the sun a factor? Sure. A bit one? There's nothing to suggest it has any ability to have any noticeable effect. It's such a dramatic non-factor and demonstrably so. The atmosphere isolates us from those variations almost completely. And on Venus, to the point of them probably being immeasurably small.
It's like saying that waves we see coming from a passing speed boat could also be caused by a distant fish farting. Well, okay, fish farts must cause some ripples, but we also know that they are tiny and far away while we can see the waves originating from the obvious speed boat right there.
Human impact on climate change is obvious and observable and predictable. Sun impact is non-obvious, non-observable, and predicted to not be a significant factor.
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@coliver said in Non-IT News Thread:
@jmoore said in Non-IT News Thread:
@coliver I am sure we are affecting it a little but I don't think its near as much as some think. Not sure I stated my opinion clearly or not before.
You may want to look at the mountains of research that disagree with your opinion, including the linked article. It's a fairly well known and accepted fact at this point that human activities are causing the current climate crisis.
Oh I am aware that my opinion is in the minority. I'm ok with that. I do understand the research, I just don't think we can have that universal opinion without having more data of all things involved. For example, the Earth has gone through the same thing climate-wise several times before humans were here. It goes back and forth between extremely hot and extremely cold constantly through its history. With that context, I just think its presumptuous to say we are mostly the reason for climate change. I might give it 10-20% but the rest of the climate change is the Sun itself in my opinion. I have not seen any research that takes this into account, it is all "the Earth is heating up and the correlation is increase in human population". I just think there are more variables in the situation.
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@jmoore said in Non-IT News Thread:
I have not seen any research that takes this into account,
Are you sure that they don't? I get this with research a lot... people say we are missing some factor, but often don't realize that we over-accounted for that factor to have ruled it out as much as possible.
Unless you have a model that shows why this is a factor, there's nothing to account for.
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@jmoore said in Non-IT News Thread:
Earth has gone through massive warming and cooling several time before humans were around.
Of course it has, as the article clearly states.
The point of "human caused global warming" is how it is changing the natural processes.
This science clearly denotes cycles on the 10's of millions of years. Yet, the current cycle is only 3 million years in and swinging away to a different level.
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@jmoore said in Non-IT News Thread:
@coliver said in Non-IT News Thread:
@jmoore said in Non-IT News Thread:
@coliver I am sure we are affecting it a little but I don't think its near as much as some think. Not sure I stated my opinion clearly or not before.
You may want to look at the mountains of research that disagree with your opinion, including the linked article. It's a fairly well known and accepted fact at this point that human activities are causing the current climate crisis.
Oh I am aware that my opinion is in the minority. I'm ok with that. I do understand the research, I just don't think we can have that universal opinion without having more data of all things involved. For example, the Earth has gone through the same thing climate-wise several times before humans were here. It goes back and forth between extremely hot and extremely cold constantly through its history. With that context, I just think its presumptuous to say we are mostly the reason for climate change. I might give it 10-20% but the rest of the climate change is the Sun itself in my opinion. I have not seen any research that takes this into account, it is all "the Earth is heating up and the correlation is increase in human population". I just think there are more variables in the situation.
Seconds later, here is research that addresses this specifically and points out that the sun influence is absolutely tiny and can't be the factor we are seeing...
https://www.nasa.gov/topics/solarsystem/features/solar_variability.html
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@jmoore It seems that people are definitely taking this into account in the studies.
https://earthobservatory.nasa.gov/features/SORCE/sorce_04.php
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There are two things here. One is proving that humans cause the change. The other is proving that the sun doesn't cause the change.
While I think human interaction is obviously one, if not the only, factor to current warming, there seems to be a lot of strong research that absolutely rules out the sun as being a possible factor.
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@scottalanmiller said in Non-IT News Thread:
@jmoore said in Non-IT News Thread:
I have not seen any research that takes this into account,
Are you sure that they don't? I get this with research a lot... people say we are missing some factor, but often don't realize that we over-accounted for that factor to have ruled it out as much as possible.
Unless you have a model that shows why this is a factor, there's nothing to account for.
I will have to look around. I don't have a model obviously. This is just my gut feeling that I have. venus and Mars both used to have atmospheres I believe and they were burned away by the Sun. Neither had life that we know of. While Venus is pretty close to the Sun, Mars isn't that close. While I have not read anything that seems to take this into account, I certainly do not have time to read 24 hours a day lol. So sure I could have missed it.
After reading the article you quoted, our average temperature has only slightly gone up over the last century.
From article: "Over the past century, Earth's average temperature has increased by approximately 0.6 degrees Celsius (1.1 degrees Fahrenheit)."
While that is a change, it is very little. -
@jmoore said in Non-IT News Thread:
venus and Mars both used to have atmospheres I believe and they were burned away by the Sun.
Mars had something but no magnetism so yes, blown away. Venus was not burned away, but has so much atmosphere that it shows how easily greenhouse gases can become the only significant factor. Venus is "all atmosphere."
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@jmoore said in Non-IT News Thread:
Neither had life that we know of.
Mars is not believed to have been viable for life, for the very reason that it had no sun protection even when it had an atmosphere.
But Venus there is heavy suspicion of life because it shows what is expected from runaway greenhouse effect.
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@jmoore said in Non-IT News Thread:
From article: "Over the past century, Earth's average temperature has increased by approximately 0.6 degrees Celsius (1.1 degrees Fahrenheit)."
While that is a change, it is very little.That's actually huge. I'm not sure how you get "very little" from that. It's the largest and more unprecendented change since earth's environment stabilized. I think you are looking at climate like weather, and it's nothing like that. In climate, .1F is significant, 1.1F is staggering, 2F is like.... potentially civilization ending.
1.1F is so much it can disrupt life as we know it, and very, very obviously is already doing so.
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@jmoore said in Non-IT News Thread:
While I have not read anything that seems to take this into account, I certainly do not have time to read 24 hours a day lol. So sure I could have missed it.
I think the problem is.... you are assuming that the vast body of research DIDN'T take into account the obvious, and that something non-obvious is a huge factor making all research wrong because you didn't have time to look into it. That's a really bad approach. Imagine in the storage world saying.... "Well, all research says RAID 5 is dangerous, and I don't have time to look into it, so I'll assume all research is wrong because I imagine some factor that has been otherwise ruled out wasn't really considered and that it's significant without checking" and then base decision making on that.
Being skeptical is great, but there's a big gap between skepticism and not believing research based on a specific essentially made up hunch, without any checks that it's common knowledge and already addressed. Nothing wrong with bucking convention, but be wary of discounting all human knowledge and research because you just guess that they missed something that should have been obvious.
