@HistoPol
Evaporation reduction definitely, but the others seem speculative and don't strike me as very possible because of the scale differences between some floating islands and such broad scale things as flashfloods not to mention ambient humidity.

Putting PV roofs over canals is already saving acre feet of water in a few arid irrigated agricultural regions, but it's just in its infancy so far.

the oceans are so much bigger than any reservoirs, so i doubt that even having all of them (the reservoirs) covered with solar would change the atmospheres humidity in any noticeable way.

but it would save a lot of water for agriculture and drinking (with less effort to put into than saltwater)

#ClimateSolutions for the #ClimateCrisis
#Microclimates #Permaculture

(1/3)

I am not saying that the impact of doing all that on e.g. the global amount of precipitation or the climate will be measurable.

However, I believe that mass-implementing #microclimate technology can be a game change, e.g. for #permaculture. 1) [link follows shortly]

Another example I've read and talked about in my TL is a city in Italy that uses coble-stone...

@GreenFire

1) https://www.freepermaculture.com/season-extension-microclimates/

Microclimates for Permaculture Design • Free Permaculture

How can you use microclimates for Permaculture Design? We'll explore the basics and discuss ways to extend your growing season.

^{Heather Jo Flores (Free Permaculture)}

#ClimateSolutions for the #ClimateCrisis
#Microclimates #Permaculture

(2/3)

...streets and plants a bit of grass in between the stones. The surface cools down considerably. Then, there is the ancient technology of building wind-cooled houses in the #MiddleEast that I talked about last year. 2)
If "everyone" were able to cool down their...

2) So-called #Windcatcher|s in zhe #IrNuan oasis City of #Yazd with its #Badgirs (#wind towers):

https://youtu.be/AiiGznaH0mE

How This Desert City Stays Cool With An Ancient Air Conditioning System

This is a Bâdgir an ancient air conditioner invented around the eighth century AD.Despite using no electricity, it has a cooling system that kept houses at a...

^YouTube

#ClimateSolutions for the #ClimateCrisis
#Microclimates #Permaculture

(3/3)

...houses this way...
All this passive cooling instead of using A/C would have a huge impact on energy usage.

I reckon that if we could capture and store the #AtmosphericRiver and #Flashflood/#Monsoon-type #rainfalls regionally, that would also be a huge game-changer.

//