I spat out my drink when I read the part about using solar panels to power the lights.... come on people. The cost to build and maintain these (replacing pumps,

I spat out my drink when I read the part about using solar panels to power the lights.... come on people. The cost to build and maintain these (replacing pumps, replacing lights, cleaning glass, preventing growth of bacteria or mold being pumped in through air, draining biowaste, replacing fertilizer) is going to be many orders of magnitude more costly than planting a tree.