re: Siberia's 'Doorway To The Underworld' Is Rapidly Growing In Size

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As I said before, explain to me how we even arrive at the earth's temperature that we are charting. Are we taking an average from 100 points on earth, 1000 points, 10,000 points? Where are these points? at what height above sea level is it being recorded? How often are you taking the temperatures and charting them? every second, minute, hour, day, week, month? is there some other method of determining the earths global temperature?
Can you not see how there can be differences in how that number is reached?

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A quick google search netted out this. And this is just the ice core component. Other ways are looking at rock and fossils, and any number of other items. Again, even if you completely disregard the history before man and just look at the recorded part of history, you can see a trend and a trend break. You're trying to construct a straw man argument, which has no bearing on what's going on.

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Temperature of earth is reconstructed from several proxies in ice core, ocean and lake sediments, tree rings and speleothems. Since your question focuses specifically on "use of ice core records", I'll elaborate on that. The prominent parameters used in measuring temperature are: stable isotope ratios of oxygen (18O/16O), carbon (13C/12C), hydrogen (D, deuterium, 2H/1H), nitrogen (15N/14N). Differential uptake of lighter or heavier isotopes occur - in different temperatures -- during formation and breakdown of chemical compounds. By identifying the dominant factors that control isotope fractionation in a particular material, palaeoclimatologists arrive at a quantitative measure of key parameters. A variety of time markers (biostratigraphic events, palaeomagnetic reversals,volcanic tephras, widespread isotopic excursions etc) or proxy time series (oxygen isotope stratigraphy) are used to date the ice cores themselves. The subject is vast. If you are interested to know more I suggest you start with "Paleoclimates:Understanding Climate Change Past and Present by Thomas M. Cronin, Columbia University Press, New York

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So in short, it's based on scientific approaches, many of them, virtually all of which are more complex than any speculations by you or me to discredit or confirm them.

ETA: Another article on it. There are many if you want to do a search to get actual answers (though I get the sense that's not really what you're looking for): LINK

Appropriate. You can are completely ignoring the fact that earth's global climate has changed drastically over millions of years. To think that the melting of permafrost in the tundra is entirely due to manmade activities is literally the epitome of the blind ostrich with its head in the sand.

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It's doubly bad because melting permafrost releases methane from decomposed organisms, and methane is terrible for global warming.

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It's the planet farting.

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How do they know this is 100% the cause, rather than happening naturally with or without supposed climate change epidemic?

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Because Bill Nye the Fake Scientist Guy said so.

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I'd be interested to know what specifically is going on that's causing that.

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Polar bear flatulence.

Luckily for humanity polar bears numbers are declining.

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What's the trend? smooth, or a significant jump (relatively speaking of course)?

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my point i'm trying to make to you is you don't know if this significant jump is something that has been happening short periods of time through the billions of years the earth has existed. So there's a recent significant jump. Ok. has that never happened before? I'm sure it has, and it wasn't man made.

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Do we know what causes global warming? Yes. Are humans doing those things? Yes.

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This is an opinion. There is nothing scientific that proves that it's causing it. There are tons of things that affect the earths temperature over time, that mainly being the variations in the earths orbit.

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If you are going on record that the earth is naturally warming (which may be your position, I'm not sure), I'd be interested to know what specifically is going on that's causing that

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I'm not going on record for anything, as I really don't give a shite.
So the earth is warming over the last 10 years, or 20 year, or 50 years, or 100 years. Has it never warmed before like this over a 100 year period? You can't answer that question, b/c we have no accurate way to determine that from a million years ago. I'll we can see is an estimate of it over long periods of time, and when I say long periods of time, I don't mean 50 years, like what we are looking at today and making rash decisions off of.

maybe we are helping warm the earth, maybe it's being done naturally. Why can't everyone agree on it? Everyone agrees that E=MC^2, and Newtons first law, and Newtons 2nd law. THat's science that was proven. Why can't all scientists agree that humans are the reason the earth is warming if it's science?

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TeddyPadillac

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You are being 100% dismissive of logic, and the true crux of the discussion.

Has the earth warmed before? Possibly, probably. Was it due to humans back then? No. Was it a good thing when it happened? No.

It's never a good thing for what's now happening to be happening (at least at the rate it is). So simply saying "this has maybe happened before" is yet another straw man.

It's happening now, as evidenced by a literal tidal wave of objective scientific and observed data and occurrences (for example coral bleaching and ocean temps, pack ice melting, weather patterns, and on and on and on)

If it cannot be explained because of some natural occurrence (earth's orbit is about as vague as you can get), the only other factor is humans.

The fact that you don't think we know what causes global warming is just something I can't even waste my time on. Other than laughing in an exasperated fashion.

Did the planet not warm from the period of the Ice Age to where we are today? Yes. So the planet does naturally change climate. Are we helping in varying these cooling and warming cycles? Yes. And not in the cooling phase either.

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Doorway To The Underworld

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Soo metal