I really estimate the time you should have take to create the icons. Well done !
A downloadable game
This game is BROWSER PLAYABLE on MIT's scratch platform website
This game is an unfinished draft. You have to click on the power plants so that you can see their impact on the world.
(I've used approximative and estimated values because I didn't have the time to do a search on the internet about the true consequences of each on the environment, the icons took me a very long time to draw. I made these with the built-in scratch image editor.)
All other details on scratch website
CLICK HERE TO PLAY V V V