Well, Carl, I really feel like you do about trees: they are truly essential and not just for eating from them or filtering the water underground but also for temperature moderation. Their roots hold the soil close and reduce erosion, so they are truly necessary for life itself.
Have you ever gone under a tree in the heat of the day and thought: Wow, it feels so so good here!?
Folks have been noticing that temperatures this year are downright beastly. Planting annual crops just won't cut the mustard when we are thinking about cooling an area or saving water. Trees are truly essential for our life, as important as water, and they do go together, as areas without trees usually are pretty poor on water too. There is a "what came first, the chicken or the egg" here,
but the symbiosis runs both ways.
The island of Haiti used to have lush forests, but deforestation has brought them ruin and they are now a poor country that cannot sustain itself. Other shorter plants are dying, along with the wildlife. there is mass extinction.
https://whyy.org/articles/pa-researcher-helps-document-deforestation-mass-extinction-in-haiti/
Do we have trees because we have water, or do we have water because we have trees?
Someone in this thread mentioned the importance of planting your trees where you can tend to them first, with water being an important point. Yes, especially if you plant trees that are a couple of years old. The transfer shock is hard on them.
I love this site about trees in general, and I think you will too:
https://onetreeplanted.org/blogs/stories/inspirational-quotes-about-trees
So, yes, I'm planting trees: Apple trees, plum trees, pear trees, chestnuts mulberry trees. Yes, lots of fruit trees, but maples too. sugar maples especially. But there should not be the promise of fruit at the end of the road. I plant these because I collect pips, stones, nuts and just plain pop them in the ground. That's the easiest way to plant trees. Some will be good, some definitely less so, but they will all help to sustain life and bring water to us. Planting trees that are already several years old will bring you fruit/ shade etc. sooner, but they may also falter from the transplant shock and at my age, I'm not into investing $40 in a bigger tree that may not make it. I love Rainier cherries, but no one grows them here, yet I'm told they can thrive in zone 4, so I'll try.. So I'm tossing the stones in my woods. If they make it, fine. If not, it is fine too.
And I'm learning to make cuttings. If they make it, fine. If they don't I didn't have any money invested in them, so no big loss.
I bought some chestnuts around Christmas last year. I added damp moss and plopped them in a bag in the fridge. Around March, I took a peek and saw that quite a few had sprouted and I thought: It is too early to plant them [frozen ground here] and they grow a long taproot that doesn't like to be disturbed.
So I bought a length of cheap plastic sewer pipe [about 4-5" in diameter and cut it in 12" lengths, filled them with soil and sat the whole thing in a big plastic tote. All but 2 made it, so I had 15. In late April/ early May, they were ready to plant: The roots had reached the bottom of the tote and were just starting to curl! I used an electric auger, a little Ryobi. It takes less than a minute to make a suitable hole. The diameter was just a tad bigger than the sewer pipe and I went to work. They are all doing fine. I'm not sure how fast they grow, but it doesn't matter. It doesn't matter even if I never taste a nut from them. someone will...
Those sugar maple leaves I collect each year are another project. Pick them up and toss them over the ground right before the first snow. Nature will do the rest. Some will falter, but many will find fertile ground. I have no money invested in them. I may never boil their sap... but someone will. Someone will feel good in their shade. That is important.