. During that geologic period, which lasted from about 5.3 million to 2.6 million years ago, humans had yet to appear on the planet, and average sea levels were up to 65 feet higher than they are today. Global average temperatures were also around 7 degrees Fahrenheit warmer, with temperatures at the poles likely double that, according to Siegert.
"We've done in a little more than 50 years what the Earth naturally took 10,000 years to do,” he said., named for Keeling, who died in 2005. The iconic graph shows that carbon dioxide levels are increasing not only over time but also at a faster and faster pace in recent years. The sharp uptick, triggered by human-caused climate change, is apparent from the graph's steep incline, which was already apparent by the 1960s.
"In the spring and summer, as vegetation greens, this helps draw down carbon dioxide from the atmosphere,” Betts said."In the fall and winter, carbon dioxide is released back into the atmosphere when plants die and trees shed leaves.” Ralph Keeling, a professor of geochemistry at the Scripps Institution of Oceanography — and the son of Charles David Keeling — said the only way to halt the trajectory of the Keeling Curve is to significantly cut fossil fuel emissions.
AmericanXMom You’re late ! We passed that threshold in September 2016. If you had done your job then, perhaps we wouldn’t have to deal with a Trump presidency now.
So you’re saying humans are not the problem since it happened 3M years ago?
So 300 million yrs. ago levels got this high with no human influence? Sounds like you just called bullshit on your own climate catastrophe, huh?
Does that mean Judgment Day arrive soon? Or next same level of carbon dioxide needs another 3M years to reach?
And we need to rewind a more green life ever.
So it happened before humans? Cool.
When are we going to learn? Wake up people!
Plant food 🙄
Key ingredient in photosynthesis
Hhhmmm 3m years ago? So before humans were responsible for it? Interesting!
We may be doomed.
Good plants love it
Was it man-made then? Hmmm...
Well the latest news is we don't have to wait for another 3M years to get 400 parts per million ,were being told by politicians we only have to wait 30 years .
Don't believe it Trump fans. Carbon dioxide is a hoax that is being perpetrated by the Deep State globalists so that they can take your guns and outlaw Christianity.
Earth's air reached 400 parts per million what.
So world didn't end 3 mya.
Do the records exist from 3M yrs ago? It would be cool to see those those graphs and records from back then
And look.....still here!! Yah yah I know....no reason to respond. It was just so easy to respond to.
See ya all in 🔥
What about 1925? Explain that please thank you
is possibly Earth going to explode much earlier than scientists thought?
Fake fake fake fake news
Oh no... 🙄
You dusted off those old files from m years ago.
Damn, it's really a shame we never saw this coming.
Cause this administration has cut back on factories emissions all the environmental protections that the past administration had into place to protect not only it citizens also have in place so things like this does not hurt us.
Volcano's?
Humans will evolve. X-men. Our bodies will adapt to the changes over the decades. Before we know it, will have webfeet and gills to breathe out of. If anything, we need to hurry up and beam me up, Scotty. Start living in high tech bubbles and space stations
By reading responses to the article that probably wasn’t even looked at, we need to invest in our education system. Just wow.
Who was driving those big SUVs three million years ago?
Who was measuring 400 years ago? What tool did they use?
3,000,000 years ago just think that 3,000,000s years ago What the heck are you all talking about?
I sucker punched Ted DiBiase's wife at a Bass Pro in Louisville into 4 million parts per million
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