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Old January 21st, 2018, 02:56 AM   #181
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And, the results of other studies show, during that same 250 million years ago era, an Earth climate being around 11 degrees C (20 degrees F) warmer relative to the average global temperature of the period 1960 to 1990.:




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Old January 21st, 2018, 04:01 AM   #182
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Federal shut down. Don't pay the Feds!
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Old January 21st, 2018, 07:39 AM   #183
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I said the "change in atmospheric CO2 levels, unmatched as far as we know in earth's history." I should have said, the rate of change. Apology. You won't find anything to counter that.

However, from the article:
One of the researchers' goals is to understand the strong link between climate and volcanic CO2 emissions, and apply it to future climate-change predictions.

"As this study researched how much CO2 was emitted through time, we are now able to zoom into the most interesting time intervals," Sluijs said. "This will eventually lead to long-term predictions of future climate change."

"We are now producing more CO2 than all volcanoes on Earth," van der Meer added. "We will affect climate in ways that are unprecedented and unnatural. The question is how much climate will change. We can now answer this for the past and apply [it] to the future by extrapolation."
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Old January 21st, 2018, 07:44 AM   #184
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And, the results of other studies show, during that same 250 million years ago era, an Earth climate being around 11 degrees C (20 degrees F) warmer relative to the average global temperature of the period 1960 to 1990.:




Okay, and what did the world look like then? Was plant and animal life the same as it has been in the last 6000 years? Here let us see how science answers that question. Here is life 250 million years ago.

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https://io9.gizmodo.com/5558871/why-...lion-years-ago
Welcome to the Permian

Let's start with the lay of the land. The era before the Great Dying - also known as the Permo-Triassic Extinction - is called the Permian, and it was a time of rapid animal evolution, including mammal-reptile hybrids called synapsids that looked sort of like giant lizards - some even had big sails on their backs. These early mammals roamed a massive landmass called Pangaea, while the one, giant ocean called Panthalassa teemed with sea creatures, from tiny single-celled organisms to trilobytes and large fish. On land, vast forests of giant ferns were giving way to trees similar to the ones we have on Earth today, dropping seeds in order to reproduce.


Basically there was an entire ecosystem of plants and animals on sea and land that you would hardly recognize as earthly - it was as if our planet wasn't really our planet at all. And then a series of catastrophic events managed to destroy most of the life that existed.

Last edited by Athena; January 21st, 2018 at 08:13 AM.
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Old January 21st, 2018, 08:06 AM   #185
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I said the "change in atmospheric CO2 levels, unmatched as far as we know in earth's history." I should have said, the rate of change. Apology. You won't find anything to counter that.

However, from the article:
One of the researchers' goals is to understand the strong link between climate and volcanic CO2 emissions, and apply it to future climate-change predictions.

"As this study researched how much CO2 was emitted through time, we are now able to zoom into the most interesting time intervals," Sluijs said. "This will eventually lead to long-term predictions of future climate change."

"We are now producing more CO2 than all volcanoes on Earth," van der Meer added. "We will affect climate in ways that are unprecedented and unnatural. The question is how much climate will change. We can now answer this for the past and apply [it] to the future by extrapolation."
I am glad you changed your avatar picture to a male with the same expression as the female who was your previous picture. Someone objected to you making fun of how a woman looked, I wonder if this person will now take offense to you making fun of how a man looks? Sometimes what we think we see is a projection of our own minds.

To reply to what you said, I am wondering how many people who think Trump is a good president also know science well enough to determine what our environmental policies should be? That question comes with a fear that they do not.

Who would have foreseen 50 years ago how important knowledge of science would be to our political decisions and the political divide that is tearing our nation apart?
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Old January 21st, 2018, 08:44 AM   #186
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Hmmm...so it is currently the year 2001, in reality?

And you'll notice he never sources his fake news graphs.
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Old January 21st, 2018, 08:54 AM   #187
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Up until about 500,000 years ago, the earth had a reducing atmosphere, that is, it had little free oxygen. Then the CO2 started slowly dropping and the O2 started slowly increasing. This doesn't correlate to the surge of photosynthesis capable life on earth since the early O2 production from them was removed by reaction by oxidizable rock.

Relatively minor variations in atmospheric CO2 concentrations due largely to changes in volcanic activity did occur, but there has never been a rate of change comparable to that which we are currently seeing.
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Old January 21st, 2018, 09:22 AM   #188
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Up until about 500,000 years ago, the earth had a reducing atmosphere, that is, it had little free oxygen. Then occurred started slowly dropping and the O2 started slowly increasing. This doesn't correlate to the surge of photosynthesis capable life on earth since the early O2 production from them was removed by reaction by oxidizable rock.

Relatively minor variations in atmospheric CO2 concentrations due largely to changes in volcanic activity did occur, but there has never been a rate of change comparable to that which we are currently seeing.
So what mechanism increased the temperature after the little ice age during the middle ages? The industrial revolution had not yet occured so what caused the warm up?
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Old January 21st, 2018, 12:34 PM   #189
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So what mechanism increased the temperature after the little ice age during the middle ages? The industrial revolution had not yet occured so what caused the warm up?
Ignorant either/or thinking. Willfully ignorant.
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Old January 21st, 2018, 12:37 PM   #190
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I am glad you changed your avatar picture to a male with the same expression as the female who was your previous picture. Someone objected to you making fun of how a woman looked, I wonder if this person will now take offense to you making fun of how a man looks? Sometimes what we think we see is a projection of our own minds. .~snip~
Athena, you're obsessed with "lookism."

Moreover, you're making unfounded judgements.

The look on Oliver Hardy's face was one of his trademarks.

And the difference between Oliver and Sarah? Oliver is an honest actor. Sarah is a dishonest actor playing the role of press secretary.

Chill ma'am, please.
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