CO2 levels at 800,000-year high

Haaretz ^ | April 13, 2014 21:11 GMT | Haaretz

[Scrambler Bob]

These are in the White Mountains, Calif.

14000 ft, dry and barren! Hard to imagine anything growing there.

[unixfox]

Wouldn’t the number of people on the planet have something to do with it?

I’m no scientist but I did sleep in a Holiday Inn last night.

[Drawsing]

They can date the ice cores very very accurately

From what I have heard, after a few hundred years the ice core layers get paper thin from compression. After that they use techniques such as bouncing lasers off of dust particles, electrical conductivity and other techniques. Analyzing this data, unfortunately, involves a lot of subjectivity and assumptions.

[M Kehoe]

I was here 800,000 years ago and measured the CO2

Ok, Ya all know that's false...

But everyone on this board will attest that I am the queen of England.

5.56mm

[eyedigress]

Therein lies the problem. Holiday Inn Express is the key.

[Chickensoup]

Why?

[smokingfrog]

Al Gore is teaching space shuttle dog fighting techniques?

[Kackikat]

Gee he looks bad, I guess he quite getting the facials after leaving office. 800,000 years, maybe he died and some bizarre alien took his body. That would explain the insanity of it all.

I’m surprised Gore hasn’t complained about the internet being transferred to UN/European control, he said ‘he invented the internet! I thought he would want it back.(sarc)

[ROCKLOBSTER]

yea, you could. And if you looked hard and long enough ya might find a leprechaun with a pot of gold......Prove me wrong.

Hey, I'm not defending their data, they don't have any. All their stuff is propaganda based on manufactured "facts".

The question was: "How do you measure CO2 concentrations 800,000 years ago?"

That's likely how geologists would go about it.

[Up Yours Marxists]

He’s prepping for the asteroid landing to ensure it’s inhabitable before Earth is destroyed.

[Personal Responsibility]

Quick! Quick! Send all of your money to the nearest faceless government agency! For the children!

[Personal Responsibility]

Spot on.

[Hot Tabasco]

Hey, I'm not defending their data, they don't have any.

Fair enough, sorry I misunderstood you........

[Darren McCarty]

If CO2 is THE cause of global warming, then how the hell did I have the worst winter here since the 1970’s?

[E. Pluribus Unum]

OK, here's a question for all you climate Freepers. How exactly does one measure global co2 and compare it to 800,000 past year levels?

You have to use proxies, like tree-ring data. You cannot, however, stitch recent thermometric data to ancient tree-ring data and say it's valid. That's how Michael Mann came up with his fraudulent "hockey stick graph."

The chart below shows that atmospheric CO2 levels have been vastly higher in geological time, and the world did not end.

[Starstruck]

Oh no we got caught watching Star Trek on the taxpayers dime! Quick look over there! Oldest trick in the book.

[DBrow]

So THAT’S why Earth ended 800,000 years ago!

[HiTech RedNeck]

It would have been very idiosyncratic.

[HiTech RedNeck]

At these scales, it’s like saying it’s been the highest since yesterday.

[TStro]

During the Carboniferous Period, CO2 levels were 400 times what they are now.
http://www.geocraft.com/WVFossils/Carboniferous_climate.html#anchor147264