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Carbon Dioxide Levels in the Atmosphere Hit Highest Level in 3 Million Years

Charlemagne

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Carbon Dioxide Levels in the Atmosphere Hit Highest Level in 3 Million Years

Jordan Davidson

Feb. 26, 2020 08:49AM EST

According to a recent National Oceanic and Atmospheric Administration (NOAA) report, the last time carbon dioxide levels were this high was 3 million years ago "when temperature was 2°–3°C (3.6°–5.4°F) higher than during the pre-industrial era, and sea level was 15–25 meters (50–80 feet) higher than today."

That period, the Pilocene Era, is unrecognizable from today. Giant camels walked around on the ice-free land above the Arctic Circle, as NBC News reported.

Earth first passed the 400 million parts per million of CO2 in the atmosphere in 2013. Rather than take it as a dire warning, we have become inured to that level of concentration and have seen it rise slightly in subsequent years. In 2018, the concentration was 407.4 parts per million (ppm), according to NOAA. This year, CO2 concentrations are predicted to peak at 417 ppm, according to NBC News.

That level will put humans in new, unfamiliar territory. "For millions of years, we haven't had an atmosphere with a chemical composition as it is right now," said Martin Siegert, co-director of the Grantham Institute at Imperial College London, to NBC News.

In fact, just two weeks ago, on Feb. 10, NOAA's Mauna Loa Observatory, an atmospheric baseline station in Hawaii, recorded the daily average of CO2 levels on as 416.08 parts per million, according to Common Dreams.

Carbon Dioxide concentrations are an effective measure of how many fossil fuelswe are burning. Coal and crude oil contain carbon that plants have pulled out of the atmosphere through photosynthesis over million of years. However, in short order, human activity has returned that trapped carbon back into the atmosphere, as.NOAA reported.

"We've done in a little more than 50 years what the earth naturally took 10,000 years to do," said Siegert to NBC News.

Elevated concentrations of carbon dioxide are a hallmark of the climate crisis since they are associated with higher temperatures, melting ice and sea level rise, among other effects.

University of Exeter geography professor Richard Betts, head of the climate impacts division at the UK's national weather service, expects this year's CO2 concentrations to be 10 percent higher than normal, with one or two percent of that carbon rise attributed to the Australia wildfires, as NBC News reported. The fires, which raged for nearly five months, released about 900 million tons of carbon dioxide into the atmosphere.

The Pliocene Era from 5 to 2.6 million years ago provides a window of what a world with such high carbon dioxide concentrations can look like. It was a period well before humans evolved. Temperatures at the poles then were likely about 15 degrees Fahrenheit higher than they are now, according to Siegert, who spoke to NBC News.

"There would have been a lot less ice on the planet — there probably wasn't a Greenland Ice Sheet, the West Antarctic Ice Sheet had probably melted, and big chunks of the East Antarctic Ice Sheet had probably de-glaciated, as well," he said to NBC News.

Carbon dioxide in the atmosphere is also notable for its contribution to ocean acidification. According to NOAA, when CO2 reacts with water molecules, it produces carbonic acid and lowers the ocean's pH. Already, the ocean's surface pH has dropped from 8.21 in pre-industrial times to 8.10.

"The rate of rise in the last decade has been faster than previous decades," said Betts, as NBC News reported. "We're just tracking ever onwards, and 400 ppm is now a distant memory."

https://www.ecowatch.com/china-wildlife-trade-ban-2645320590.html
 

oil&gas

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Ghawar
What would climate change activists want the government to do
to reduce global CO2 level? Place a ban on Canada's export of 34
million tonnes of coal per year? Criminalize oil imports from
Saudi Arabia to Ontario? I have the sense that climate change
deniers and believers would be united to defend the nation's
economy from climate fanatics.
 

Insidious Von

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Sep 12, 2007
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That's true oil&gas, Canada's economy is being propped up by selling our surplus coal to China and India. How dare we!

Not sure about 3 million years ago but the human race nearly went extinct when the Mount Toba Supervolcano exploded 77,000 years ago.

https://www.youtube.com/watch?v=W5Cs4Rcmtk8
 

Frankfooter

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Apr 10, 2015
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What would climate change activists want the government to do
to reduce global CO2 level? Place a ban on Canada's export of 34
million tonnes of coal per year? Criminalize oil imports from
Saudi Arabia to Ontario? I have the sense that climate change
deniers and believers would be united to defend the nation's
economy from climate fanatics.
A carbon tax, as noted by the Nobel winning economist.
Its not that hard.

Carbon tax
end fossil fuel subsidies and use that money to subsidize renewables.
 

danmand

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Nov 28, 2003
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A carbon tax, as noted by the Nobel winning economist.
Its not that hard.

Carbon tax
end fossil fuel subsidies and use that money to subsidize renewables.
The entire world except USA has adopted that plan.
 

K Douglas

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Jan 5, 2005
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Room 112
If CO2 concentration in today's atmosphere are at the same level as ti was 3M years ago, then why aren't the sea levels 15-25m higher than they are now? Why isn't the global temperature 2-3°C warmer than today? If that isn't the proof that CO2 is not the driver climate wackos think it is, I don't know what is.

Just to put into context, the Earth is 4.5 billion years old. 3 million years represents but 0.00066% of Earth's history. We live in a world of relative CO2 starvation - meaning that for the vast majority of Earth's existence CO2 levels were 10 times plus more than they are today.
 
O

OnTheWayOut

Who was measuring these things millions of years ago? No one, they are throwing shit out to see if it sticks.
 

JohnLarue

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Jan 19, 2005
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If CO2 concentration in today's atmosphere are at the same level as ti was 3M years ago, then why aren't the sea levels 15-25m higher than they are now? Why isn't the global temperature 2-3°C warmer than today? If that isn't the proof that CO2 is not the driver climate wackos think it is, I don't know what is.

Just to put into context, the Earth is 4.5 billion years old. 3 million years represents but 0.00066% of Earth's history. We live in a world of relative CO2 starvation - meaning that for the vast majority of Earth's existence CO2 levels were 10 times plus more than they are today.
Not only all of the above but CO2 levels went from 0.03% to 0.04%
Below 0.02% all plant life dies & then it is adeos amego

Terb Members on ignore: Frankfooter
 

K Douglas

Half Man Half Amazing
Jan 5, 2005
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Room 112
Who was measuring these things millions of years ago?
Scientists use ice cores and tree rings as proxies to determine past temperatures, precipitation and co2 levels.
 

Frankfooter

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Explain how billions of wealthy countries dollars are making the snow caps not melt and you might have a some credibility on your very vague answer.
Why don't you read the Nobel winning prize paper for economics that shows that a carbon tax is the best way to fight climate change.
https://www.iisd.org/library/nordhaus-nobel

After that, feel free to show us that you're smarter than the Nobel committee and prize winner.
Don't forget to show your work.
 

Frankfooter

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Apr 10, 2015
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If CO2 concentration in today's atmosphere are at the same level as ti was 3M years ago, then why aren't the sea levels 15-25m higher than they are now? Why isn't the global temperature 2-3°C warmer than today? If that isn't the proof that CO2 is not the driver climate wackos think it is, I don't know what is.

Just to put into context, the Earth is 4.5 billion years old. 3 million years represents but 0.00066% of Earth's history. We live in a world of relative CO2 starvation - meaning that for the vast majority of Earth's existence CO2 levels were 10 times plus more than they are today.
Lag time, it takes time to melt all that polar ice and heat those oceans.
 

Frankfooter

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Apr 10, 2015
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Not only all of the above but CO2 levels went from 0.03% to 0.04%
Below 0.02% all plant life dies & then it is adeos amego

Terb Members on ignore: Frankfooter
Wanna show us how minute levels of anything are safe, like you think CO2 levels are?
I suggest taking an aspirin sized pill of cyanide, which would give you a similar ration as CO2 in the atmosphere.

Tell us how it goes and you, like Mike Hughes, can prove your thesis in a manly and scientific way.
 

JohnLarue

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Jan 19, 2005
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Yeah, they're guessing.
And the alarmist computer models predicting catastrophe in the future are not guessing?
Scientific historical dating is sound and logical, if applied properly based upon scientific principles. However there are uncertainties because one can not go back in time to verify the results.
Reproducible results across methodology adds confidence

Prediction out into the future via a computer model is a much bigger guess
Climate is very complex & it is chaotic

Terb Members on ignore: Frankfooter
 

Frankfooter

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Apr 10, 2015
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And the alarmist computer models predicting catastrophe in the future are not guessing?
No, they are fucking awesome science as noted by the head of NASA's GISS program, Gavin Schmidt, an excellent, respected and respected scientisrt.
What climate change denier has ever done anything as fucking awesome as these projections over the last 20 years?

 
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