- bear, or something -

Take a moment and ask yourself, a project like this requires a lot of time, money and dedication of resources, why would scientists dedicate that time to something that could just be done by a tree?

The answer is they wouldn't. So that means this claim requires further investigation!

This project is called LIQUID 3, and it's not meant for cities with wide open spaces, it's meant for cities like Belgrade in Serbia. These cities are densely populated and heavily polluted, to the point where pollution actually chokes out current trees and makes creating green spaces difficult.

Liquid 3 was a PhD scientists answer to these problems. The microalgae tank is intended for spaces where you either:

Don't have enough space to plant full trees, or

Don't have enough time to plant trees and wait for them to grow up.

The tank is extremely efficient when you consider the amount of space needed compared to the amount of CO2 turned into oxygen. The tank can operate throughout the winter. And most importantly, it can be quickly set up in areas that desperately need relief from air pollution NOW not in 10 years when trees are done growing. Children currently suffocating on polluted air can't wait for trees to grow, they need to be taken care of now, and Liquid 3 is one of the ways to take care of them. Depending on the species of microalgea used, a number have shown a pretty amazing capacity to pull heavy metals out of the air which is something trees can get choked up by.

The tanks aren't just tanks either! Liquid 3 have solar panels placed on top, they have lighting and mobile phone charging, and they work as public benches. The designers of it want to encourage green spaces where there's room, but where there isn't room or time, Liquid 3 can step in. Realistically, this isn't a replacement for trees. It's replacing boring metal city benches with new, cooler benches that also clean the air (and have at least some heating during the winter).

Not only that, but the microalgea that grows is native to Serbia and all that microalgea has a ton of great uses! It makes for great fertilizer, compost, wastewater treatment, cleaner biofuels and even for helping create new tanks for further air purification. They only require a quick algae divide once a month, and the produced algae can be carted off to where ever it's needed. This makes them effective solutions for areas that can't sustain complex installations.

Now, somehow, their entire mental health is based on the continued life and happiness of this fairground goldfish that they picked up.

Neither of you know the first thing about how to care for even a healthy fish. This fish has been poorly cared for, has multiple diseases and the person who handed it over explicitly didn't expect it to live nearly as long as it already has.

You're frantically googling how to set up a fish tank, where to buy fish food, can you even take a fish to the vet? Your partner wants you to know that they're happy they made it home and survived their horrific ordeal, but also that if anything happens to the fish then they're going to kill everyone on this planet and then themself.

You're honestly wondering if you're even helping the fish, or just prolonging its suffering, but your partner will only accept medical help for their many injuries or engage in basic self-care once they're confident that the fish is being looked after.

So you get a tank. You set up a filter and all that stuff. You learn way more than you ever wanted to know about water temperature and ph and nitrate levels. The fish is safe. You start to develop some affection for the little guy. Your partner begins to recover. The fish begins to recover.

Which is when you learn that in its 'healthy' state, the fish regularly refuses to sleep when tired, keeps begging for food that is obviously unhealthy for it (and struggling to eat the food that you do provide because “it tastes gross”), and continually tries to persuade your partner to take it out of its nice safe tank so it can go explore the wonderful world of Outside, where the slightest mishap will kill it instantly.