I wonder if there is a standard measurement for “lushness” of a city.

Something like the ratio of acres of concrete/steel/glass to the acres of grass/water/dirt

i asked a couple friends who might know.

where i live (residential area south of downtown austin) i can only have so much of my lot area covered by structures or concrete (any non-permeable surface, really). i wonder how that's managed in the more urban areas? they may just rely totally on the storm drainage systems 🤔

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Hmm wonder if that is measurable using satellite images or something..