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Reading past the headline, the effect is from trees providing shadow, and evaporating water cooling the air.

You don't need any actual botanical gardens.

But it’s probably the easiest and cheapest way. Another plus point would be creating habitat for smaller animals and morale boost for the city inhabitants

Well, both require making land available, and while amenity gardening is manageable, a botanical garden is often a research site that requires a lot of expertise to set up and maintain. Mind you, that's just fine, the county can and should hire people.

> botanical garden is often a research site that requires a lot of expertise to set up and maintain

But it doesn't have to be, right? It's just that we don't have very many, so the ones that do exist end up being research sites.

Looking out my window, I see trees planted on the sidewalk along a road.

It takes little space away from pedestrians, but provides a lot of shade. That seems both easier, cheaper and better that taking up whole city blocks.

We need more trees, i am shouting that for years.

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