Which gas is responsible for 'Global Warming'?

Global warming is caused by the emission of greenhouse gases. 72% of the totally emitted greenhouse gases are• 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 and ethanol.