Re: OT: CO2 reaches 30 million-year high...

On Thu, 3 Jul 2025 15:45:36 -0400, moviePig <nobody@nowhere.com>
wrote:

On 7/3/2025 12:44 PM, Rhino wrote:

On 2025-07-02 10:58 PM, moviePig wrote:

>
...and counting.  But don't worry, Trump's shutting down the sensor...
>
https://www.nbcnews.com/science/climate-change/earth-co2-record-
global- warming-rcna210974

 
Read your own subject line and give it a couple of seconds of thought.
The CO2 level was high 30 million years ago and is only just now
catching up to that level now. What happened in the meantime? Why, it
went down! Surely the result of passionate activism by all the
environmentally conscious people of that era, right? Oh, wait, THERE
WERE NO PEOPLE OF ANY KIND 30 million years ago!!!
 
So how did all that CO2 get into the atmosphere in the first place if
there were no people and what process made the levels get lower after
that peak 30 million years ago? What makes you think that same process
won't come into play now?

>
I posted to scotch any suspicion that, because we've forgotten about
global warming, it's forgotten about us.  The CO2 greenhouse effect
appears to be among the less controversial bellwether phenomena.
>
As to whether there's a CO2-fairy who steps in to tweak the thermostat
whenever things get toasty, you should note that 30 million years ago
just happens to match today's CO2 level ...and at that time the level
was *dropping* from much, much higher (whereas today it's rising).
>
But, like you, I derive my scientific view from that of "experts"...and,
afaics the genuine ones seem, if uncertain about magnitude, nevertheless
unanimous about direction.  Here's a short take answering your question:
>
   https://earth.org/data_visualization/a-brief-history-of-co2/
>

Seems to me the latest I'm hearing from the experts is less about the
temperature change and more about the speed of the change. If the
temps were to raise, even by 10 degrees, over the next 10,000 years I
think we could handle it. It wouldn't be pleasant since much of the
ocean front property would be under water, but we can adjust given
enough time.

However if that same change were to occur over the next 100 years we
wouldn't have time to adjust as many of our major cities would be
underwater leaving all of those residents without a place to live. I
don't expect we would see such a drastic change as the predictions
seem to be for a degree increase, barring the runaway condition that
hit Venus. Still, if that change occurs over a short enough time we
are going to be faced with a very difficult situation.