Re: [HPAC] Rehydrate the Earth to counter act global warming, and evaporative cooling causing both the water and the air to be cooled.

[Michael MacCracken]

Dear Jesper--

Several problems I see with your proposal:

1. In dry land areas with low dew point, water is precious. And it can take a good bit of water to sustain plants.

2. In ocean areas, the dew point generally rises to the temperature of the water, which does a small bit of cooling given the relatively large heat content of the water. And it generally takes extra energy to promote evaporation.

3. Water in the atmosphere is a greenhouse gas that promotes warming (raising the dew point)--and the contribution to global average temperature is the average of the daily minimum and maximum temperatures, so raising the minimum contributes to warming even as the reduction in the maximum is reducing the warming contribution.

4. Related to point 3, a dry atmosphere tends to allow greater energy (heat) release, which is why the nighttime temperature in dry land, for example, drops so low. So, moistening the air does cool the water a bit, but that has to be compared to the reduction in IR loss (the greenhouse effect of greater loading of water vapor). Your analysis seems to be considering the former of the two terms--it is essential to do the full comparison.

Mike MacCracken

On 4/17/26 12:56 PM, Jesper Pedersen wrote:

Hi All

 

According to attached ”Evaporative cooling for aquacultural production” it’s possible to reduce the ocean water temperature,

once the difference between actual temperature and wet bulb temperature are high, exactly the same basic cooling principle as my proposal.

BTW the paper regarding open loop evaporate cooling tower, is from University Of Florida from March 1993, many years ago 😊

 

Evaporative cooling occurs when water is brought in

contact with air that has a wet bulb temperature lower

than that of the water. As the air and water remain in

contact, the heat required for evaporation is taken from

the water and the air, causing both the water and the air

to be cooled,

 

One of the main reasons for global warming is dried and overheated landscapes, which are maybe an even bigger factor, than increased concentrations of CO2 and CH4 in the atmosphere.

This is also mentioned in below video by Michal Kravcik and Anastassia Makarieva.

Rehydrate Earth with Damon Gameau

www.youtube.com/live/dFUUrL2iAos  

 

If someone from would like to be a part of the project, feel free to reach out.

BTW the droplet size of the water is not so important to obtain cooling.  

We will solve global warming for sure, the sooner thus the better.

 

Wish everyone a pleasant weekend.

 

Med venlig hilsen/ Best regards

Jesper Pedersen

Owner

JP ClimaTec ApS

Phone: +45 44 14 47 15

Mail: j...@innochiller.com

Web: www.jpclimatec.com

 

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[Michael MacCracken]

Dear Jesper--I saw nothing in your response about how more water vapor increases the greenhouse effect, nor how more water vapor in the atmosphere raises the dew point and so raises the minimum temperature (and so the daily average temperature).

The great benefit of model simulations that it carries through a quantitative analysis and, if the model is good, keeps track of all relevant effects (more water vapor might well lead to more rain and so vegetation, that is darker and so more solar absorption). I'd like to see some global model simulations of your ideas.

Best, Mike

On 4/17/26 3:00 PM, Jesper Pedersen wrote:

Dear Michael

 

Thank you for your response and points.  

• If we investigate the climate, it makes really good sense to have air which is close to the dew point, before the sun goes down, since the Earth act as a dehumidifier during the night, around 50% of the surface area, and water vapor will be removed from the air.

If dew point is reached later in the night, then the Earth will remove a less amount of water vapor, during that night cycle.

• Water is evaporated into the air during the day, once the sun shines, 340 W/m2 in average, for the remaining 50% of the surface area. A little variation here due to the Milankovitch cycles, but not relevant to take into account, since the industrialization.  
• If the entire planet is wet area/wet lands, then water can evaporate into the air, and the Earth’s mean average temperature will also be lower than now, and lands areas has become drier since the industrialization, according to Google.    
• The good thing with lower air temperature, is that the absolute amount of water vapor, gram H2O/kg dry air (Dew point line) is lower at lower temperature, than higher temperature, according to Mollier diagram.   
• The more water there is evaporated into the air during the day, then the air temperature will be kept low during the day, in the same way as our own body temperature is 100F/37C, and our body temperature is constant as all activity levels, because we temperature regulate our body temperature through evaporation.
• Another reference is that a snow cannon can produce snow at air temperature of up to +2 , if the air is dry before water is evaporated into the air. See also whether conditions from 10^th of March17:00, where there is a temperature difference of 9,4 , between Anholt 1,6 (foggy whether) and Copenhagen 11 , sky clear condition, and very short distance between (130 km).    
• 10^th of April, the temperature drops from 14 to snow condition the next morning 0 , and the relative humidity was around 35% before the temperature starts to drop, so this is one of the main reasons for the big temperature drop.
• A dry climate converts the Suns energy into sensible energy, where the specific heat capacity of air is 1,005 KJ/(kg*K) where the feedback of hot air, is that the air can hold even more water vapor before reaching it dewpoint, and latent heat of evaporation of water is approx. 2475 KJ/kg, so this means one kg of evaporated water, can help to keep 2.462 kg of air at constant low temperature, instead of just increasing temperature with the feedback, that air can hold more water vapor at higher temperature.
• Another good feedback with air close to the dew point, is that the lifetime of the water vapor cycle, is shorter than water vapor accumulated in dry hot climate, far away from the dew point.    
• Adiabatic cooling scenario from 40 20% RH to wet bulb temperature 22 , here 7,5 gram of evaporated water is able to cool down 1000 gram of air, with 18 , just because of the additional evaporated water, and this cooling can be obtained immediately once the humidification is activated.  
• A Team which also works on the overall same cooling principle, with the purpose to convert dry to wet climate, and using catabatic cooling tower is: www.oasis-tower.com
• A natural way of cooling, which is very similar to my proposal and description above, is also mentioned by Jan Pokorny 6:45 in below video, where tree covered area and wet lands is our Mother Earth, natural air conditioner, where water evaporates and form low altitude clouds and which also increases the albedo, instead of dry climates, which don’t generates clouds. The higher evaporation rate from tree covered area, results in biotic pump cascade effect, so precipitation can be produced long away from the coastline, and potentially at scale, cool down the entire planet, once dessert areas is converted into green areas again.   

3. Building a Biotic Pump | Cool The Country

www.youtube.com/watch?v=JGKn2WDaQCY&list=PLUr-ByGbQgAkdA6PQr-lb8z1t4gX3_qHV&index=4&t=331s

 

Feel free for questions or comments, thanks.

[Jesper Pedersen]

Dear Michael

 

Thank you for your response and points.  

• If we investigate the climate, it makes really good sense to have air which is close to the dew point, before the sun goes down, since the Earth act as a dehumidifier during the night, around 50% of the surface area, and water vapor will be removed from the air.

If dew point is reached later in the night, then the Earth will remove a less amount of water vapor, during that night cycle.

• Water is evaporated into the air during the day, once the sun shines, 340 W/m2 in average, for the remaining 50% of the surface area. A little variation here due to the Milankovitch cycles, but not relevant to take into account, since the industrialization.  
• If the entire planet is wet area/wet lands, then water can evaporate into the air, and the Earth’s mean average temperature will also be lower than now, and lands areas has become drier since the industrialization, according to Google.    
• The good thing with lower air temperature, is that the absolute amount of water vapor, gram H2O/kg dry air (Dew point line) is lower at lower temperature, than higher temperature, according to Mollier diagram.   
• The more water there is evaporated into the air during the day, then the air temperature will be kept low during the day, in the same way as our own body temperature is 100F/37C, and our body temperature is constant as all activity levels, because we temperature regulate our body temperature through evaporation.
• Another reference is that a snow cannon can produce snow at air temperature of up to +2 , if the air is dry before water is evaporated into the air. See also whether conditions from 10^th of March17:00, where there is a temperature difference of 9,4 , between Anholt 1,6 (foggy whether) and Copenhagen 11 , sky clear condition, and very short distance between (130 km).    
• 10^th of April, the temperature drops from 14 to snow condition the next morning 0 , and the relative humidity was around 35% before the temperature starts to drop, so this is one of the main reasons for the big temperature drop.
• A dry climate converts the Suns energy into sensible energy, where the specific heat capacity of air is 1,005 KJ/(kg*K) where the feedback of hot air, is that the air can hold even more water vapor before reaching it dewpoint, and latent heat of evaporation of water is approx. 2475 KJ/kg, so this means one kg of evaporated water, can help to keep 2.462 kg of air at constant low temperature, instead of just increasing temperature with the feedback, that air can hold more water vapor at higher temperature.
• Another good feedback with air close to the dew point, is that the lifetime of the water vapor cycle, is shorter than water vapor accumulated in dry hot climate, far away from the dew point.    
• Adiabatic cooling scenario from 40 20% RH to wet bulb temperature 22 , here 7,5 gram of evaporated water is able to cool down 1000 gram of air, with 18 , just because of the additional evaporated water, and this cooling can be obtained immediately once the humidification is activated.  
• A Team which also works on the overall same cooling principle, with the purpose to convert dry to wet climate, and using catabatic cooling tower is: www.oasis-tower.com
• A natural way of cooling, which is very similar to my proposal and description above, is also mentioned by Jan Pokorny 6:45 in below video, where tree covered area and wet lands is our Mother Earth, natural air conditioner, where water evaporates and form low altitude clouds and which also increases the albedo, instead of dry climates, which don’t generates clouds. The higher evaporation rate from tree covered area, results in biotic pump cascade effect, so precipitation can be produced long away from the coastline, and potentially at scale, cool down the entire planet, once dessert areas is converted into green areas again.   

3. Building a Biotic Pump | Cool The Country

www.youtube.com/watch?v=JGKn2WDaQCY&list=PLUr-ByGbQgAkdA6PQr-lb8z1t4gX3_qHV&index=4&t=331s

 

Feel free for questions or comments, thanks.

 

Med venlig hilsen/ Best regards

Jesper Pedersen

Owner

JP ClimaTec ApS

Phone: +45 44 14 47 15

Mail: j...@innochiller.com

Web: www.jpclimatec.com

 

From: Michael MacCracken <mmac...@comcast.net>

Sent: 17. april 2026 22:21
To: Jesper Pedersen <j...@innochiller.com>; healthy-planet-...@googlegroups.com
Cc: 'Robert Chris' <robert...@gmail.com>; 'John Nissen' <johnnis...@gmail.com>; Robert Tulip <rob...@rtulip.net>; Ron Baiman <rpba...@gmail.com>; planetary-...@googlegroups.com; Sev Clarke <sevc...@icloud.com>; John Macdonald <ning...@icloud.com>

[Jesper Pedersen]

Dear Michael

Or we can remove climate models (Waste of time) from the table and do real field experiments, and show the World that we will and can Fix Global Warming within 20-30 years.

 

Feel free for questions or comments, thanks.

 

Med venlig hilsen/ Best regards

Jesper Pedersen

Owner

JP ClimaTec ApS

Phone: +45 44 14 47 15

Mail: j...@innochiller.com

Web: www.jpclimatec.com

 

From: Michael MacCracken <mmac...@comcast.net>
Sent: 18. april 2026 00:17
To: Jesper Pedersen <j...@innochiller.com>; healthy-planet-...@googlegroups.com
Cc: 'Robert Chris' <robert...@gmail.com>; 'John Nissen' <johnnis...@gmail.com>; Robert Tulip <rob...@rtulip.net>; Ron Baiman <rpba...@gmail.com>; planetary-...@googlegroups.com; Sev Clarke <sevc...@icloud.com>; John Macdonald <ning...@icloud.com>
Subject: Re: [HPAC] Rehydrate the Earth to counter act global warming, and evaporative cooling causing both the water and the air to be cooled.

 

Dear Jesper--I saw nothing in your response about how more water vapor increases the greenhouse effect, nor how more water vapor in the atmosphere raises the dew point and so raises the minimum temperature (and so the daily average temperature).

The great benefit of model simulations that it carries through a quantitative analysis and, if the model is good, keeps track of all relevant effects (more water vapor might well lead to more rain and so vegetation, that is darker and so more solar absorption). I'd like to see some global model simulations of your ideas.

Best, Mike

 

 

On 4/17/26 3:00 PM, Jesper Pedersen wrote:

Dear Michael

 

Thank you for your response and points.  

1. If we investigate the climate, it makes really good sense to have air which is close to the dew point, before the sun goes down, since the Earth act as a dehumidifier during the night, around 50% of the surface area, and water vapor will be removed from the air.

If dew point is reached later in the night, then the Earth will remove a less amount of water vapor, during that night cycle.

2. Water is evaporated into the air during the day, once the sun shines, 340 W/m2 in average, for the remaining 50% of the surface area. A little variation here due to the Milankovitch cycles, but not relevant to take into account, since the industrialization.  
3. If the entire planet is wet area/wet lands, then water can evaporate into the air, and the Earth’s mean average temperature will also be lower than now, and lands areas has become drier since the industrialization, according to Google.    
4. The good thing with lower air temperature, is that the absolute amount of water vapor, gram H2O/kg dry air (Dew point line) is lower at lower temperature, than higher temperature, according to Mollier diagram.   
5. The more water there is evaporated into the air during the day, then the air temperature will be kept low during the day, in the same way as our own body temperature is 100F/37C, and our body temperature is constant as all activity levels, because we temperature regulate our body temperature through evaporation.

2. Another reference is that a snow cannon can produce snow at air temperature of up to +2 ℃, if the air is dry before water is evaporated into the air. See also whether conditions from 10^th of March17:00, where there is a temperature difference of 9,4 ℃, between Anholt 1,6 ℃ (foggy whether) and Copenhagen 11 ℃, sky clear condition, and very short distance between (130 km).    
3. 10^th of April, the temperature drops from 14 ℃ to snow condition the next morning 0 ℃, and the relative humidity was around 35% before the temperature starts to drop, so this is one of the main reasons for the big temperature drop.

2. A dry climate converts the Suns energy into sensible energy, where the specific heat capacity of air is 1,005 KJ/(kg*K) where the feedback of hot air, is that the air can hold even more water vapor before reaching it dewpoint, and latent heat of evaporation of water is approx. 2475 KJ/kg, so this means one kg of evaporated water, can help to keep 2.462 kg of air at constant low temperature, instead of just increasing temperature with the feedback, that air can hold more water vapor at higher temperature.
3. Another good feedback with air close to the dew point, is that the lifetime of the water vapor cycle, is shorter than water vapor accumulated in dry hot climate, far away from the dew point.    

2. Adiabatic cooling scenario from 40 ℃ 20% RH to wet bulb temperature 22 ℃, here 7,5 gram of evaporated water is able to cool down 1000 gram of air, with 18 ℃, just because of the additional evaporated water, and this cooling can be obtained immediately once the humidification is activated.  

[Paul Klinkman]

Dear Restorers,

Playground misters are becoming popular.  They efficiently cool the kids that run through the mist.

I recommend floating solar powered mister buoys with some batteries for additional early evening humidification of the air.  We want massive volumes of evaporation for low lifetime energy cost and maintenance costs.  Various sketches of misters are at my self-named https://klinkmansolar.com/knightfog.htm#U4c

Misters might put about half of each droplet's H2O into the air.  The cooled mist droplets then drift down to the ocean's surface, slightly cooling the ocean, which is also slightly to our planet's regional benefit.  

Climate 101:  Large enough thermals of moist air will rise in a dry atmosphere, given equal temperatures and pressures.  This is primarily because a mole of H2O vapor molecules has notably lower mass than a mole of 78% Nitrogen and 22% Oxygen molecules.  When a river of moist air comes ashore and warms up to a certain temperature over land, you're going to get thermals, cumulus clouds and perhaps thunderclouds.  When the river blows onshore and then up a coastal mountain range, expect nightly fog on the local fog-loving trees.  

Misting is a regional improvement, hence it's going to be politically popular with voters in specific states or in specific counties.  We probably don't need a worldwide treaty to win here.

When I say, "Yours in Hope" I mean it.  I can always gloomdoom tomorrow.

Paul Klinkman

[Brian Cady]

Jesper Pedersen,

"All models are wrong; some are useful" is a system analyst's saying. We use mental modelling, for example in thinking up possible climate solutions. Computer modelling can verify these mental models. Modelling can sometimes reveal if a proposed solution may make a problem worse. While imperfect, it is also affordable in comparison with real world experiments.

Brian
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For more from Brian, please see:
http://hopefulvision.blogspot.com

[Jesper Pedersen]

Hi Brian

 

Thank you for your email, and for confirming my point, of course if the climate model are valid, then it of course make sense to rely on.

Anastassia Makarieva also explain that the models don’t take the biotic pump into account, in order to calculate the effect between dry landscapes and wet lands.

From 01 hour and 11 minutes this topic is discussed of why the models don’t take biotic pump into account, and how much the temperature increases because of dry climates.

www.youtube.com/live/dFUUrL2iAos

 

Another thing is that the temperature is lower inside fog close to sea level, than the surrounding air, and can be up to several degrees in temperature difference, and a Pilot also told me that the temperature is higher inside clouds at higher altitude than the atmosphere surrounding at the same altitude, so clouds and fog, are very complicated and it’s difficult to calculate at home, how much better cooling is obtained by clouds at 1000 meters than 2000 meters and so on.

 

So I really find huge potential for climate models, which can take several factors into account, at the same time.   

 

Med venlig hilsen/ Best regards

Jesper Pedersen

Owner

JP ClimaTec ApS

Phone: +45 20417023

Mail: j...@innochiller.com

Web: www.jpclimatec.com

[Paul Klinkman]

I'd pretty much side with Jesper's analysis.

> Dear Jesper--

> Several problems I see with your proposal:

> 1. In dry land areas with low dew point, water is precious. 

> And it can take a good bit of water to sustain plants.

Actually, fresh surface water and well water is precious.  In the nation of Niger, 200 million new trees that have long tap roots have been planted in the bottomland of usually dry rivers.  These trees can tap the year-round moisture 10 meters down, and then they humidify the local and regional air.  They turn permanent sand dune land into productive farmland with a few trees.

> 2. In ocean areas, the dew point generally rises to the temperature 

> of the water, which does a small bit of cooling given 

> the relatively large heat content of the water. 

> And it generally takes extra energy to promote evaporation.

I recommend that we describe a more complex model of the atmosphere over the ocean.  First off, sometimes the wind blows north or south, moving air over cooler or warmer sea surface temperatures.  In such situations the surface air dew point might not be the temperature of the water.  Second, surface air doesn't mix with upper level air at all when dust-laden Sahara air comes over the Atlantic, but it mixes like crazy in a hurricane.  

>3. Water in the atmosphere is a greenhouse gas that 

>promotes warming (raising the dew point)--and the 

> contribution to global average temperature is the 

> average of the daily minimum and maximum temperatures, 

> so raising the minimum contributes to warming 

> even as the reduction in the maximum is 

> reducing the warming contribution.

Vertical latent heat transfer is the overwhelming contribution of water vapor to regional temperature.  Heat from the ocean's surface can be pulled into the stratosphere by a hurricane, and latent rain forest heat will rise into towering tropical thunderclouds.  After condensation, physical heat moved into the stratosphere is above most of the earth's insulating greenhouse blanket, and so the heat more quickly radiates into space.  This appears to be a fundamental, major computational error built into some basic atmospheric models.  What do you think? 

I will note a possible radiative heat absorbing effect of clouds.  Some incoming solar radiation will be bounced or refracted by clouds in random directions. This solar radiation becomes physical heat in the atmosphere, but then a portion of this physical heat easily re-radiates back into space because the heat is above most of the atmosphere's greenhouse effect blanket.

>  4. Related to point 3, a dry atmosphere tends to allow 

> greater energy (heat) release, which is why the nighttime temperature 

> in dry land, for example, drops so low. So, moistening the air 

> does cool the water a bit, but that has to be compared to 

> the reduction in IR loss (the greenhouse effect of greater 

> loading of water vapor). Your analysis seems to be 

> considering the former of the two terms--it is essential 

> to do the full comparison.

> Mike MacCracken

Wild late night temperature plunges aren't good for agriculture.  For the crops it's better to have ground fog keeping surface air temperatures above freezing.  Growers employ various tactics that save their crops from frost.

Yours in Hope,

Paul Klinkman