Fun game with some neat choices going on with policy. The theming and temperature system has a overall lackluster impact, able to be completely ignored. You can easily beat the game well before you get to the point of approaching balancing carbon emissions. Even when reducing C02 to zero, the temperature still rises--and worse, it rises slow enough at all times to never matter. I would have really like to see a system that had a meaningful gameplay impact, where you really had to balance growing and chopping trees.