On 1/21/24 10:56 AM, ScottW wrote:

The Clausius-Clapeyron relationship has been a fundamental principle
in climate science, suggesting that with every 1°C rise in
temperature, atmospheric moisture should increase by about 7%.

Surprisingly, the research found that over dry and semi-arid regions, moisture levels have remained constant or even declined, as observed
in the Southwestern United States.

"This is contrary to all climate model simulations in which it rises
at a rate close to theoretical expectations, even over dry regions,"
the authors wrote in the new paper. (end snip)

You may note that water vapor is a "green house" gas and this lack in
the rise with rising temps is an issue with current climate
projections.

“It is a really tricky problem to solve, because we don't have global observations of all the processes that matter to tell us about how water
is being transferred from the land surface to the atmosphere," [Simpson]
said. "But we absolutely need to figure out what's going wrong because
the situation is not what we expected and could have very serious
implications for the future.”

Paper found here:

https://www.pnas.org/doi/10.1073/pnas.2302480120#:~

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On 22/01/2024 3:56 am, ScottW wrote:

The Clausius-Clapeyron relationship has been a fundamental principle in climate science, suggesting that with every 1°C rise in temperature, atmospheric moisture should increase by about 7%.

Surprisingly, the research found that over dry and semi-arid regions, moisture levels have remained constant or even declined, as observed in the Southwestern United States.

"This is contrary to all climate model simulations in which it rises at a rate close to theoretical expectations, even over dry regions," the authors wrote in the new paper.
(end snip)

You may note that water vapor is a "green house" gas and this lack in the rise with rising temps is an issue with current climate projections.

ScottW

**The climate of this planet is exceedingly complex and not perfectly understood. It makes perfect sense to spend a lot more money to assess
the situation.

HOWEVER, there is one thing that is clear and unequivocal:

The temperature of the planet is rising and rising fast and CO2 is the
major driver that remains under human control.

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On 1/22/24 12:00 PM, ScottW wrote:

On Sunday, January 21, 2024 at 2:00:39 PM UTC-8, Trevor Wilson wrote:

On 22/01/2024 3:56 am, ScottW wrote:

The Clausius-Clapeyron relationship has been a fundamental principle in climate science, suggesting that with every 1°C rise in temperature, atmospheric moisture should increase by about 7%.

Surprisingly, the research found that over dry and semi-arid regions, moisture levels have remained constant or even declined, as observed in the Southwestern United States.

"This is contrary to all climate model simulations in which it rises at a rate close to theoretical expectations, even over dry regions," the authors wrote in the new paper.
(end snip)

You may note that water vapor is a "green house" gas and this lack in the rise with rising temps is an issue with current climate projections.

ScottW

**The climate of this planet is exceedingly complex and not perfectly
understood. It makes perfect sense to spend a lot more money to assess
the situation.

HOWEVER, there is one thing that is clear and unequivocal:

The temperature of the planet is rising and rising fast and CO2 is the
major driver that remains under human control.

Assumed increases in water vapor is a big factor in the prediction of catastrophic tipping.
And it's not rising near as fast as predicted. Nor are glaciers gone or snow no more as predicted.

https://climate.mit.edu/ask-mit/why-do-we-blame-climate-change-carbon-dioxide-when-water-vapor-much-more-common-greenhouse

[W]ater vapor differs in one crucial way from other greenhouse gases
like CO2, methane, and nitrous oxide. Those greenhouse gases are always
gases (at least when they’re in our atmosphere). Water isn’t. It can
turn from a gas to a liquid at temperatures and pressures very common in
our atmosphere, and so it frequently does. When it’s colder it falls
from the air as rain or snow; when it’s hotter it evaporates and rises
up as a gas again.

“This process is so rapid that, on average, a molecule of water resides
in the atmosphere for only about two weeks,” says Emanuel.

This means extra water we put into the atmosphere simply doesn’t stick
around long enough to alter the climate; you don’t have to worry about warming the Earth every time you boil a kettle. And there’s really no
amount of water vapor we could emit that would change this. “If we were
to magically double the amount of water vapor in the atmosphere, in
roughly two weeks the excess water would rain and snow back into oceans,
ice sheets, rivers, lakes, and groundwater,” Emanuel says.

End quote.

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On 23/01/2024 5:00 am, ScottW wrote:

On Sunday, January 21, 2024 at 2:00:39 PM UTC-8, Trevor Wilson wrote:

On 22/01/2024 3:56 am, ScottW wrote:

The Clausius-Clapeyron relationship has been a fundamental principle in climate science, suggesting that with every 1°C rise in temperature, atmospheric moisture should increase by about 7%.

Surprisingly, the research found that over dry and semi-arid regions, moisture levels have remained constant or even declined, as observed in the Southwestern United States.

"This is contrary to all climate model simulations in which it rises at a rate close to theoretical expectations, even over dry regions," the authors wrote in the new paper.
(end snip)

You may note that water vapor is a "green house" gas and this lack in the rise with rising temps is an issue with current climate projections.

ScottW

**The climate of this planet is exceedingly complex and not perfectly
understood. It makes perfect sense to spend a lot more money to assess
the situation.

HOWEVER, there is one thing that is clear and unequivocal:

The temperature of the planet is rising and rising fast and CO2 is the
major driver that remains under human control.

Assumed increases in water vapor is a big factor in the prediction of catastrophic tipping.
And it's not rising near as fast as predicted. Nor are glaciers gone or snow no more as predicted.

ScottW

**You STILL fail to understand the reality. CO2 and methane are the big problems. Water vapour is not something we can control (directly). In
some areas of the planet (deserts, Arctic and Antarctic regions) CO2 and methane are vastly more influential than water vapour.

We need to address the problem of human release of GHGs.

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