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Topic: Weather, Climate, Environment, and Energy

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847badgerfan

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Re: Weather, Climate, Environment, and Energy
« Reply #10220 on: June 24, 2024, 03:20:00 PM »
Dam it!

Minnesota's Rapidan Dam collapses - sending river of water toward town (msn.com)
Minnesota's Rapidan Dam collapses - sending river of water toward town (msn.com)
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847badgerfan

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Re: Weather, Climate, Environment, and Energy
« Reply #10221 on: June 24, 2024, 03:54:33 PM »
Not much going on out there, but it's still so early in the season. 

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FearlessF

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Re: Weather, Climate, Environment, and Energy
« Reply #10222 on: June 24, 2024, 04:51:29 PM »

GREENFIELD, IOWA TORNADO BREAKS ALL-TIME WINDSPEED RECORD- Dethroning the May 3rd, 1999 Bridge Creek/Moore Tornado! 309-318mph winds!


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847badgerfan

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Re: Weather, Climate, Environment, and Energy
« Reply #10223 on: June 24, 2024, 05:18:41 PM »
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betarhoalphadelta

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Re: Weather, Climate, Environment, and Energy
« Reply #10224 on: June 24, 2024, 06:01:28 PM »
Not good news...

https://phys.org/news/2024-06-heavier-temperature-previously-thought-analysis.html


Quote
Stronger relationship
When the researchers plot the derived temperature and atmospheric CO2 levels of the past 15 million years against each other, they find a strong relationship.
The average temperature 15 million years back was over 18 degrees: 4 degrees warmer than today and about the level that the UN climate panel, IPCC, predicts for the year 2100 in the most extreme scenario.
"So, this research gives us a glimpse of what the future could hold if we take too few measures to reduce CO2 emissions and also implement few technological innovations to offset emissions," Damsté said.

"The clear warning from this research is CO2 concentration is likely to have a stronger impact on temperature than we are currently taking into account."

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Cincydawg

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Re: Weather, Climate, Environment, and Energy
« Reply #10225 on: June 24, 2024, 06:10:27 PM »
The average temperature 15 million years back was over 18 degrees: 4 degrees warmer than today and about the level that the UN climate panel, IPCC, predicts for the year 2100 in the most extreme scenario.

I presume this is degrees C, and the "average T" is considered to be 15°C (59°F), and has been for quite some time, and increasing.  And we also know Malinkovitch cycles have had an enormous impact in T in the past, so this article seems to be confusing to me.

 "A very small fraction of the carbon on Earth occurs in a 'heavy form,' 13C instead of the usual 12C. 

As for this comment, I would not say it's a very small fraction, it's 1.1%.  I guess that's semantics.  Your MRI scans depend on it.
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Cincydawg

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Re: Weather, Climate, Environment, and Energy
« Reply #10226 on: June 24, 2024, 06:39:01 PM »
Our reconstructed pCO2 values across the past 15 million years suggest Earth system sensitivity averages 13.9 °C per doubling of pCO2 and equilibrium climate sensitivity averages 7.2 °C per doubling of pCO2. Although these values are significantly higher than IPCC global warming estimations, they are consistent or higher than some recent state-of-the-art climate models and consistent with other proxy-based estimates.

I read the article pretty quickly but didn't see any commentary on ice ages etc.  If the 7.2°C figure is anywhere close to correct, we're in for serious problems (but that is for doubling, which is somewhere in the 2100 period).

 Global temperature is projected to warm by about 1.5 degrees Celsius (2.7° degrees Fahrenheit) by 2050 and 2-4 degrees Celsius (3.6-7.2 degrees Fahrenheit) by 2100.

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betarhoalphadelta

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Re: Weather, Climate, Environment, and Energy
« Reply #10227 on: June 24, 2024, 07:12:44 PM »
I didn't get too in depth on the article. I didn't have time to read the source paper (if it's even publicly available w/o paywall). 

It just worries me if we now are getting evidence that climate sensitivity to CO2 is higher than predicted. If that's actually the case, it's quite bad. 
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Cincydawg

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Re: Weather, Climate, Environment, and Energy
« Reply #10228 on: June 24, 2024, 07:19:35 PM »
The article is open to read.  And yes, that is its conclusion. 
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Brutus Buckeye

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Re: Weather, Climate, Environment, and Energy
« Reply #10229 on: June 24, 2024, 10:45:39 PM »
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FearlessF

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Re: Weather, Climate, Environment, and Energy
« Reply #10230 on: June 25, 2024, 08:14:46 AM »
91% humidity here currently

only 79 degrees
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Cincydawg

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Re: Weather, Climate, Environment, and Energy
« Reply #10231 on: June 25, 2024, 08:24:57 AM »
That isn't  unusual for mornings, high humidity and lower T.  Then relative humidity drops of course as T rises.

73°F here and 63% RH.  Yesterday was pretty hot, but "it was a dry heat", it was not too bad in the shade, nice breeze etc.

Supposed to hit 95°F, which is a bit unusual, but not a record (99°F in 1988).  Average is 88°F.

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Cincydawg

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Re: Weather, Climate, Environment, and Energy
« Reply #10232 on: June 26, 2024, 08:27:38 AM »
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FearlessF

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Re: Weather, Climate, Environment, and Energy
« Reply #10233 on: June 26, 2024, 08:29:27 AM »
yup, I-29 closed north of Sioux City towards Sioux Falls, SD and south of Sioux City towards Omaha

it's a shit show
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