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Old January 25th, 2018, 09:25 AM   #211
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Originally Posted by Libertarian Guy View Post
I find it quite hilarious when one of them works so hard to try to sound smart by bringing all kinds of “sciencey” stuff that shows climate change happens naturally, then they turn around and say “Not this time. Not natural. Man is doing it”.

And they don’t even realize how stupid they look.
Uh, you don't realize how stupid you look, and are evidently.

"...all kinds of “sciencey” stuff...."

There you have it folks. A denier never lets science get in the way of their paranoid politics ... while they project this very flaw upon people who do accept the scientific foundation for the changes in the climate we are observing.

But then, denial of science is to be expected from folks living in a world based on alternative facts.

Last edited by imaginethat; January 25th, 2018 at 11:16 AM.
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Old January 25th, 2018, 11:15 AM   #212
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Originally Posted by imaginethat View Post
Uh, you don't realize how stupid you look, and are evidently.

"...all kinds of “sciencey” stuff...."

There you have it folks. A denier never lies science get in the way of their paranoid politics ... while they project this very flaw upon people who do accept the scientific foundation for the changes in the climate we are observing.

But then, denial of science is to be expected from folks living in a world based on alternative facts.
I don’t deny science. Science has proven the climate has changed on its own for billions of years.

You boys have a theory.
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Old January 25th, 2018, 01:24 PM   #213
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Originally Posted by TNVolunteer73 View Post
Lets see.. Explain to me why CO2 leves have been higher during PREVIOUS 4 warming periods?

I will wait paitently for you to answer.
Explain to us why you lie all the time? (You will, of course, never answer...but, of course, we already know the answer - either 'cult of reality denial' wacko or paid troll for the fossil fuel industry)

The answer to your fraudulent 'question' is....they haven't!

You're just spewing more denier cult 'alternative facts' that everyone else calls lies.

CO2 levels are higher now than they have been at any time in at least the last 800,000 years, and more likely the last 15,000,000 years, as a number of paleoclimate studies have determined. Scientists have identified around eleven interglacial periods over the last 800,000 years, most with CO2 levels around 280ppm, similar to our current interglacial period before industrialization, with some at lower levels, but with none of them higher than about 300ppm. Current CO2 levels are about 407ppm, which is an over 45% increase (and still rising fast) above pre-industrial CO2 levels across the Holocene Era.

CO2 levels are far higher now than they have been for anytime during the past 800,000 years. - Credit: Scripps Institution of Oceanography.

The Last Time CO2 Was This High, Humans Didn’t Exist
- "The most direct evidence comes from tiny bubbles of ancient air trapped in the vast ice sheets of Antarctica. By drilling for ice cores and analyzing the air bubbles, scientists have found that, at no point during at least the past 800,000 years have atmospheric CO2 levels been as high as they are now."


***

Last time carbon dioxide levels were this high: 15 million years ago, scientists report
UCLA
- "The last time carbon dioxide levels were apparently as high as they are today — and were sustained at those levels — global temperatures were 5 to 10 degrees Fahrenheit higher than they are today, the sea level was approximately 75 to 120 feet higher than today, there was no permanent sea ice cap in the Arctic and very little ice on Antarctica and Greenland"

Last edited by imaginethat; January 26th, 2018 at 05:43 AM.
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Old January 25th, 2018, 03:39 PM   #214
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Last time carbon dioxide levels were this high: 15 million years ago, scientists report
UCLA
- "The last time carbon dioxide levels were apparently as high as they are today — and were sustained at those levels — global temperatures were 5 to 10 degrees Fahrenheit higher than they are today, the sea level was approximately 75 to 120 feet higher than today, there was no permanent sea ice cap in the Arctic and very little ice on Antarctica and Greenland"
So, the last time CO2 levels were at today's levels, 15 million years ago, (we can all agree man had no SUVs or yachts at the time, right) it was due to natural causes.

And you claim temps were 10 degrees higher, sea levels were 120 ft higher, and there was no ice caps.

Seems today's CO2 levels caused by man are much more benevolent. We aren't near as destructive as nature, huh?

Good link. Thanks for destroying your own bullshit once again. This is getting fun.
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Old January 25th, 2018, 03:45 PM   #215
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Seems all we need to do is eliminate Sammiches!!!!!!!!!!


And these morons wonder why they are mocked and ridiculed.


Quote:
Scientists at the University of Manchester have found a surprising global warming culprit – sandwiches. In the first study of its kind, the researchers carried out an in-depth audit of various sandwiches throughout their life cycles and found the triangular meals could be responsible for the equivalent annual carbon emissions of 8.6 million cars in Britain alone.
https://newatlas.com/sandwiches-global-warming/53128/
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Old January 25th, 2018, 11:01 PM   #216
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Originally Posted by justoneman View Post
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?
The same overall "mechanism" which has caused the warming of earth's climate during the late 20th and early 21st centuries, that being a change in the amount of radiative energy entering earth's climate system relative to the amount of radiative energy exiting Earth's climate system.

In fact,...

Quote:

When there’s more energy radiating down on the planet than there is radiating back out to space, something’s going to have to heat up

...

The concept of radiative forcing is fairly straightforward. Energy is constantly flowing into the atmosphere in the form of sunlight that always shines on half of the Earth’s surface. Some of this sunlight (about 30 percent) is reflected back to space and the rest is absorbed by the planet. And like any warm object sitting in cold surroundings — and space is a very cold place — some energy is always radiating back out into space as invisible infrared light. Subtract the energy flowing out from the energy flowing in, and if the number is anything other than zero, there has to be some warming (or cooling, if the number is negative) going on.

It’s as if you have a kettle full of water, which is at room temperature. That means everything is at equilibrium, and nothing will change except as small random variations. But light a fire under that kettle, and suddenly there will be more energy flowing into that water than radiating out, and the water is going to start getting hotter.

In short, radiative forcing is a direct measure of the amount that the Earth’s energy budget is out of balance.

For the Earth’s climate system, it turns out that the level where this imbalance can most meaningfully be measured is the boundary between the troposphere (the lowest level of the atmosphere) and the stratosphere (the very thin upper layer). For all practical purposes, where weather and climate are concerned, this boundary marks the top of the atmosphere.

...


Explained: Radiative forcing | MIT News

And, quantified, the primary driver of that change of that entering versus exiting radiative energy since 1750 thru about 2011 has been the increase in concentration of greenhouse gases in earth's atmosphere.:




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Old January 26th, 2018, 05:41 AM   #217
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More proof climate changes on its own.

Thanks.
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Old January 26th, 2018, 05:41 AM   #218
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Originally Posted by Libertarian Guy View Post
I don’t deny science. Science has proven the climate has changed on its own for billions of years.

You boys have a theory.
No theory. Certain gases cause the atmosphere retain heat by absorbing and re-radiating long wave infrared.

CO2 is one of those gases. Human activities have caused a very rapid rise in earth's atmospheric CO2 levels.

This has caused the atmosphere to retain more energy, heat. This has driven the average global temperatures higher, but locally weather may be warmer, cooler, drier or wetter. On average, storms such as hurricanes and thunderstorms drop more rain and are in general more powerful.

Climatology like all sciences evolves. Some of its earlier predictions were off the mark, but like all scientific disciplines, climatology is self-correcting.

We are observing changes in our climate due to increases in CO2, and methane, and a host of other gases with extremely high warming potential.

Those are the facts.
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Old January 26th, 2018, 05:45 AM   #219
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Originally Posted by Libertarian Guy View Post
So, the last time CO2 levels were at today's levels, 15 million years ago, (we can all agree man had no SUVs or yachts at the time, right) it was due to natural causes.

And you claim temps were 10 degrees higher, sea levels were 120 ft higher, and there was no ice caps.

Seems today's CO2 levels caused by man are much more benevolent. We aren't near as destructive as nature, huh?

Good link. Thanks for destroying your own bullshit once again. This is getting fun.
Ignorant either/or thinking seems to be your trademark. Willful ignorance at that.
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Old January 26th, 2018, 05:55 AM   #220
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Ignorant either/or thinking seems to be your trademark. Willful ignorance at that.
Just using the science brought to the discussion. I see you have no coherent counter to my position.
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