I really like the realistic vibes it has. It seems really well thought out! As a fellow companion has mentioned, the Papers Please vibes are really strong. I think both the gameplay and the aesthetic alongside the narrative presented here synergies really well with the call to action. It's both informative and interesting. I would like to see a clearer vision of your production plan and how much "days" will go by until the botanist returns. This might indicate your scope better.
I'm guessing that as you introduce invasive plants, the botanist tells you about how they are seeing them all over through their trips. I really get the vibe of "chaotic" decisions locking you into "bad" endings. I love the idea of the hopeful future you imagined for the game, where society wants to be sustainable and work alongside nature. I think the impact of showing the players how a sustainable future would be like, where everyone actively works with their communities to care about the space they live in is a very powerful thing.
Best of luck and I'm really excited for this!