Which gas is mainly responsible for global warming?

The main greenhouse contributing to the phenomenon of global warming is carbon dioxide (CO₂). It enters the atmosphere due to the burning of fossil fuels such as coal, oil, and natural gas; deforestation; etc. It traps the heat of the Earth with the help of the greenhouse phenomenon. A greenhouse is a structure that keeps the heat inside; similarly, the greenhouse phenomenon keeps the sunlight inside the atmosphere of the Earth. The sunlight of the Earth is thus retained due to the greenhouse phenomenon. Even other greenhouse gases like methane and nitrous oxide are contributing to the phenomenon of global warming, but the amount of carbon dioxide is more.