How to not destroy your Island?

Ideation for the Climate Jam (Indie Cade):

Hello, you begin on an island with only trees and your people need to survive the winter. First, you can add houses and a power plant. The power plant uses coal that give you pollution points and you need to create a coal mine (The extraction gives you pollution points too). You heat the house with electricity when you begin. Then you use a big boiler room that warns few houses for a lesser cost of coal. Then, you can add solar panel to each house and trees to diminish the pollution.

At the end of the game you run out of coal, so you will need to have enough electricity coming from the solar panels for all your people in each house if you don't want they die. The people will not be visible it will be only numbers.

Sorry if my English is too bad, it's not my first language.