It's a pretty cool concept, and I enjoyed it! I was lowkey scared when my world started shrinking faster and faster. And the music really helped establish that fear.
Though one thing that I might point out is the lack of motive for the player to earn money. Well, yeah players could earn up money then spend them on buildings, but when the consequences of pollution start to get out of hand, they'd simply spam out research buildings everywhere. I don't know if this is intentional design, but it kindda bothered me a bit. Maybe add additional reasons why players should balance research and profit late game.
Other than that though, it's a nice game. Good job! 👌