The greenhouse effectNatural phenomenon in which a planet's atmosphere is warmed due to the presence of certain gases that have the ability to trap infrared radiation ... is a natural phenomenon caused by the presence of certain gases in a planet’s atmosphere. Solar radiation passes through the atmosphere, warming land and water as it is absorbed. Infrared radiation, some or all of which is trapped inside the atmosphere, is released back into space.
Increased concentrations of greenhouse gases in the atmosphere exacerbate this warming phenomenon.
The greenhouse gases that absorb radiation in the atmosphere are water vapor (H2O), carbon dioxide (CO2See Carbon Dioxid) and other gases such as methaneThe main component of natural gas deposits and oil deposit gas caps. Methane is produced naturally by landfills... (CH4) and nitrous oxide (N2O).