One of the most problematic greenhouse gases is Carbon dioxide (CO2). Too much of CO2 in the atmosphere would make Earth too warm. In this cool game, the player need to balance the CO2 sources with CO2 absorbents which means that the target is to offset CO2 emissions to ease global warming. “Offset” means to balance out or make up for.
A source of CO2 is anything that burns fossil fuel and produces CO2 as waste while CO2 absorbent is anything that consumes CO2. CO2 sources in this game include coal-burning power plants and gasoline-powered cars. A The CO2 absorbent in this game are forests, since trees use CO2 and emit oxygen (O2) as part of the photosynthesis process.