Interesting little game! I had a bit of a difficulty understanding my progress. I occupied a few planets but I wasn't sure what the win condition was (if there is one). Maybe I didn't play for long enough.
I also thought the connection to the climate issue wasn't that strong or apparent in the game itself. Even if it can be seen as a jumping off point for the games setting it didn't seem to have much impact on the games story or mechanics.
The art looks very nice and the space travel feels fittingly difficult to control!