According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now.

blueman.cambodia wrote: ↑Sat Nov 06, 2021 1:56 pm According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now.

The last time the concentration of CO2 was as high as 400 ppm was probably in the Pliocene Epoch, between 2.6 and 5.3 million years ago. Until the 20th century, it certainly hadn't exceeded 300 ppm, let alone 400 ppm, for at least 800,000 years. That's how far back scientists have been able to measure CO2 directly in bubbles of ancient air trapped in Antarctic ice cores.
National Geographic.

blueman.cambodia wrote: ↑Sat Nov 06, 2021 1:56 pm According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now.

I think the timescale you're using is a bit off.



The current levels are the highest since the Pleistocene, which started around 800.000 years ago. Around 30% higher than the latest all time high in an interglacial period over 300.000 years ago.

According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now

No link- you stink.

Weird how even "The Economist" (biggest flunkey for financial pigs) pretends to care and reports on this ... and the C02 diagram is identical to the one above ... Nobody does anything.

Premier Modi of India revealed himself an absolute moron when he said his nation would reach C02 net zero by 2070... Scott Morrison of Australia is as bad and as evil as Manchin of West Virginia -- shameless idiots, with brainless agendas...

https://12ft.io/proxy?ref=&q=https://ww ... -26-summit

nemo wrote: ↑Sat Nov 06, 2021 2:46 pm

According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now

No link- you stink.

https://skepticalscience.com/co2-higher-in-past.htm

blueman.cambodia wrote: ↑Sun Nov 07, 2021 8:43 am

nemo wrote: ↑Sat Nov 06, 2021 2:46 pm

According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now

No link- you stink.

https://skepticalscience.com/co2-higher-in-past.htm

So where exactly does the link prove you right? The graph below comes from the site you linked to.

Kammekor wrote: ↑Sun Nov 07, 2021 9:14 am

blueman.cambodia wrote: ↑Sun Nov 07, 2021 8:43 am

nemo wrote: ↑Sat Nov 06, 2021 2:46 pm

According to science, carbon in the atmosphere was over ten times higher 4000 years ago, than it is now

No link- you stink.

https://skepticalscience.com/co2-higher-in-past.htm

So where exactly does the link prove you right? The graph below comes from the site you linked to.

"blueman.cambodia" ...It is quite clear that we are causing increases in CO2 levels during the contemporary era... The prehistoric eras of high C02 were consequent upon primeval evolutionary conditions that dominated the Earth as it cooled down into its present state. Don't forget, atmospheric oxygen was generated by micro-organisms (cyanobacterial photosynthesis) in the sea, which began up to 3 billion years ago. The cooling and gobbling up of surplus C02 by hydro-oxy-carbon life forms took a long long time.

Anyway, here is another graph. From 'the Economist'. Unless "blueman.cambodia" is myopic or altogether blind, I am sure he can register the connection between the sudden rise of fossil fuel burning with the simultaneous elevation in CO2 levels evidenced by the contemporary graph. It is this scene that concerns us most, not what happened way back in the Devonian period...

Random Dude wrote: ↑Sat Nov 06, 2021 12:56 pm

Europe and America will build walls to keep everyone out.

I think it's just as likely that sooner or later other countries will be building walls to keep Europeans and Americans out.

Not at the present moment in Europe anyway:

"Crisis worsens on Poland-Belarus border as migrants congregate and troops are mobilized"

https://www.cnn.com/2021/11/08/europe/p ... index.html

IraHayes wrote: ↑Tue Nov 02, 2021 2:01 pm

nemo wrote: ↑Tue Nov 02, 2021 1:29 pm turn up the heat to 50° C in the conference rooms at the COP26 and let them leave once they commit to a real solution

I'll get seriously worried once the elite in society stop buying beach front homes and start buying mountain retreats.

Nice theory but it is flawed. The Elites already own mountain retreats for skiing or just posing or fresh mountain air. Plus the beachfront houses, plus the country retreats, plus the townhouses or penthouse apartments on the big cities, and a private jet to ferry them around.