But, in Comedy of Character, the Individual is self-determined; his situation, in its essential points, is the consequence of his own action  of his own folly or weakness; he is not plunged into it from without, by fate or by accident. In this sphere the Individual will find a realm of freedom.
CO2 - the major cause of global warming. Global warming is caused by the emission of greenhouse gases . 72% of the totally emitted greenhouse gases is carbon dioxide (CO2), 18% Methane and 9% Nitrous oxide (NOx). Carbon dioxide emissions therefore are the most important cause of global warming. CO2 is inevitably created by burning fuels like e.g. oil, natural gas, diesel, organic-diesel, petrol, organic-petrol, ethanol.
The contribution of carbon dioxide from the burning of fossil fuels by humans is a new input into this cycle with uncertain consequences. We are inputting carbon dioxide into the atmosphere at about 120 times the natural rate of carbon recycling (from Turco, Earth Under Siege p. 307).