those old trees of wood that give you shadow in hot days are pretty outdated, it's time for trees 2.0!! without all that shadow and all that pesky wood!
I mean, it's an interesting concept, if we're using it for extracting CO2 from the air, but since it appears to be sealed, it's kinda stupid.
They bubble air through the water. You can see the bubbles in the picture. They actually developed something like this years ago and could actually charge batteries from the photosynthesis of the algae... Not a lot of energy but enough to power some lights for a while. They were floated as a way to light walkways and stuff at night while also sucking up tons of CO2. The original designs were just tubular tanks and supposedly one tank would capture as much CO2 in a year as a tree would over it's entire lifespan. Or so they claimed.
From the photo, it looks like in all the space this thing takes up, you could have just planted a regular tree. It doesn't make sense as an alternative in urban areas with limited space or whatever if it uses up just as much space.
That's aside from the fact that trees are helpful in keeping the temperature down during summer. I doubt whether this thing does the same.
It uses more space! The bulk of the tree is in the air, with just a trunk at ground level. This tank looks like shit and has been designed as a trip hazard.
This tank looks like shit and has been designed as a trip hazard.
It's a bench. Also at least lacks spikes, showing whomever designed this might be an idiot, but at least is not totally wasting that oxygen.
You know, this thing would have been cool as an Indoors wall thingy in malls and such, since algae doesn't need as much maintenance as houseplants and would produce more oxygen too. Placing the tank outside is a strange decision, it simply doesn't match with the streets stylistically or functionally and will require regular repairs and cleaning from damages of the elements and filth that would accumulate at extreme speeds.