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It's getting hot in here!


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Stuck in an office in this heat, without any air con. Our buildings are meant for heat to be kept inside to the max. This is genuinely fucking hellish. We aren't allowed to wear smart shorts/chino shorts with a shirt either, but women can wear skirts. Seems reasonable. 
Get a skirt on then.
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7 minutes ago, dorlomin said:

41-Figure8.18-1.png

https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapter08_FINAL.pdf

We have broad estimates of the natural forcings over the past 120 years. There is no change to a major component of the system that can explain the changes we have seen other than CO2. 

https://www.nature.com/articles/35066553

Cherry picking data over such a small sample period is, as we saw from Covid modelling, filled with confirmation bias. It correlates to the desired hypothesis and therefore must confirm it.

The problem with focusing on the last few hundred (or even thousand) years is it ignores the vast majority of Earth's life cycle, and completely ignores the causes of prior periods of extreme heat and cold.

If CO2 is the sole driver of the current warming of the climate, then it must be shown firstly what was responsible for previous periods of warming and cooling and also why they do not apply at all here.

As I said earlier, if the natural cycle of the Earth's climate dictates that it is going to heat up moving forward, then trying to slow the rate of change (which may or may not have any meaningful impact) to ultimately arrive at the same destination a little bit later really isn't the best use of time or resources.

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Just now, Todd_is_God said:

as we saw from Covid modelling, filled with confirmation bias. It correlates to the desired hypothesis and therefore must confirm it.

The problem with focusing on the last few hundred (or even thousand) years is it ignores the vast majority of Earth's life cycle, and completely ignores the causes of prior periods of extreme heat and cold.

If CO2 is the sole driver of the current warming of the climate, then it must be shown firstly what was responsible for previous periods of warming and cooling and also why they do not apply at all here.

As I said earlier, if the natural cycle of the Earth's climate dictates that it is going to heat up moving forward, then trying to slow the rate of change (which may or may not have any meaningful impact) to ultimately arrive at the same destination a little bit later really isn't the best use of time or resources.

Quote

Cherry picking data over such a small sample period is,

Marcott.png

From Marcott 2013

https://www.science.org/doi/abs/10.1126/science.1228026

Longish story but our climate has been dominated by orbital cycles over the past 3 million years. This is due to our CO2 being so low vs historic norms. This made us very sensitive to small changes. So we built major ice sheets over both polls. Small changes in orbit change the energy at high northern latitude and pushed us in and out of glacials (what everyone thinks of as ice ages). 

About 11 000 years ago the Earth was in northern hemisphere summer when closest to the Sun, this is what pushed us out of the last glacial. But over those 11000 years we now have our norther hemisphere summer when furthest from the Sun. This caused a long term cooling that we see in Marcott 2013. That cooling would allow snows to last longer in the high hills, so cooling springs and reinforcing etc. This is the long term causes of the glacial interglacial phases we see. 

Our release of CO2 since the mid 1800 has seen that trend reverse. 

Other forcings obviously work. Over the longer time frames the Sun heating up is the dominant climate forcing. 

https://www.geosociety.org/gsatoday/archive/14/3/pdf/i1052-5173-14-3-4.pdf

(astrophysics nerds, as it burns hydrogen into helium, the helium is much more dense so the core gets denser and burns faster).

Royer 2004 compares the slow warming of the Sun with the CO2 feedback to show that CO2 and the Sun explain most of the long term changes. 

tldnr, human CO2 has disrupted long term cycles. 

 

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Just now, dorlomin said:

Marcott.png

From Marcott 2013

https://www.science.org/doi/abs/10.1126/science.1228026

Longish story but our climate has been dominated by orbital cycles over the past 3 million years. This is due to our CO2 being so low vs historic norms. This made us very sensitive to small changes. So we built major ice sheets over both polls. Small changes in orbit change the energy at high northern latitude and pushed us in and out of glacials (what everyone thinks of as ice ages). 

About 11 000 years ago the Earth was in northern hemisphere summer when closest to the Sun, this is what pushed us out of the last glacial. But over those 11000 years we now have our norther hemisphere summer when furthest from the Sun. This caused a long term cooling that we see in Marcott 2013. That cooling would allow snows to last longer in the high hills, so cooling springs and reinforcing etc. This is the long term causes of the glacial interglacial phases we see. 

Our release of CO2 since the mid 1800 has seen that trend reverse. 

Other forcings obviously work. Over the longer time frames the Sun heating up is the dominant climate forcing. 

https://www.geosociety.org/gsatoday/archive/14/3/pdf/i1052-5173-14-3-4.pdf

(astrophysics nerds, as it burns hydrogen into helium, the helium is much more dense so the core gets denser and burns faster).

Royer 2004 compares the slow warming of the Sun with the CO2 feedback to show that CO2 and the Sun explain most of the long term changes. 

tldnr, human CO2 has disrupted long term cycles. 

 

Aye, I’m sure we all really believe that science can accurate state temperature trends from 12000 years ago. They simply travelled back in time with their thermometers. 

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Just now, Thorongil said:

Aye, I’m sure we all really believe that science can accurate state temperature trends from 12000 years ago. They simply travelled back in time with their thermometers. 

Honestly it took me two seconds to google and find out how they estimate past climates.

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30 minutes ago, coprolite said:

 

The press release from 3 days ago when the warning was released included the 50%. 

You guys are just making shit up

Yes, the media comms from forecasters and meterologists have been studiously pointing out 50% certainty in recent days and haven’t been presenting 40 degrees as highly likely. 😆

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I think this constitutes confidently predicting 40 degrees again now for tomorrow. Certainly no mention of 50% probability in this forecast.

England didn’t get near its record today, a whole 1.3 below. Wales STILL being VAR checked for it’s 0.1 degree.

67-AACEBE-CA33-47-D8-B753-F5-A85-EAF9934
 

 

Edited by Thorongil
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9 minutes ago, Thorongil said:

Aye, I’m sure we all really believe that science can accurate state temperature trends from 12000 years ago. They simply travelled back in time with their thermometers. 

Multiple methods are used. But the best we have is oxygen isotopes in ice sheets. Oxygen has two stable isotopes O16 and O18. The warmer the ocean that water comes from the higher the ratio of O18 to O16 in ice cores. A similar method using carbon isotopes is used for deep dwelling shell forming creatures. There are many more. But those tend to be the gold standards. 

https://earthobservatory.nasa.gov/features/Paleoclimatology_OxygenBalance

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I think this constitutes confidently predicting 40 degrees again now for tomorrow. Certainly no mention of 50% probability in this forecast.

England didn’t get near its record today, a whole 1.3 below. Wales STILL being VAR checked for it’s 0.1 degree.
67-AACEBE-CA33-47-D8-B753-F5-A85-EAF9934.png
 
 

Only if you don't understand how probability or more generally statistics works, which I suppose you have already shown is the case.

It is a prediction, but it is not necessarily a confident one. It would be impractical to show the associated uncertainty on a map like that, but it still exists.
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4 minutes ago, Thorongil said:

Well, if 0.1 of a degree in Wales is significant then 1.3 degrees is 13 times as significant.

You don't think 1.3 degrees below the record is worth putting a warning out for?

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