Colonizing the worlds of Imagine Earth requires an environmentally-conscious strategy

I've been seeing more and more games putting an emphasis on mechanics oriented around environmentalism and sustainability. Games in genres that typically encourage unchecked exploitation of resources are now becoming more and more about the sustainable use of resources. It makes sense. Climate change is becoming more and more of a visible problem that affects our lives in tangible ways. Milliennial game developers are also searching for ways to cope with the fact that our generation and the next will be stuck paying the consequences of the short-sightedness of our parents' and grandparents' generations. Many members of those earlier generations are still, unfortunately in positions of political and corporate power, and make up a large voting block, and are continuing to make selfish, short-sighted decisions that will only make matters worse for the younger generations. It makes sense that younger game developers would be baking those anxieties into the games that they make.

Ecologically-focused colony-building

Imagine Earth is the type of city-builder / strategy sim that has typically been about conspicuous consumption, but it now wants the player to consume more responsibly. Not only does this game expect the player to industrialize the surface of entire planets at the behest of a corporation, it also asks the player to do that with an eye towards limiting greenhouse gas emissions, deforestation, and other pollution. Developing a sustainable economy doesn't only mean cutting back on emissions from power plants, industrial activity, and so forth. It also requires restoring or expanding natural habitats by planting forests, growing corals, and so forth.

Imagine Earth prioritizes limiting greenhouse emissions and pollution.

Either the player has to plan the growth of your colonies in a sustainable fashion and prevent emissions and pollution from ever getting out of hand to begin with, or you have to spend the back half of each mission doing damage control.

Unfortunately, just like in real-life, any individual person or corporation or government's environmental efforts aren't necessarily sufficient to curtail the effects of climate change. There are often other corporations or settlements on these planets which don't have the same noble ecological goals, and who will happily ruin things for everybody else. They are there to make a quick buck by exploiting as much of the resources as possible, with no plans for sustained long term habitation -- the other people living on the planet be damned. But the corporation we work for in Imagine Earth does plan on prepping these planets for long-term colonization, so we have to pick up those other corporations' messes. Sometimes through violence, coercion, or sabotage, but usually through a hostile takeover of majority stake.

Not all corporations are concerned with long-term colonization that requires a stable environment.