Gases, such as Carbon dioxide (CO2), Methane (CH4), Nitrous
oxide (N2O), Fluorinated gases, that trap heat in the atmosphere are
called Greenhouse gases, These gases allow sunlight to enter the
atmosphere freely. When sunlight strikes the Earth’s surface, some
of it is reflected back towards the space as infrared radiation (heat).
Greenhouse gases absorb this infrared radiation and trap the heat
in the atmosphere.
We produce larger amounts of carbon dioxide than any other
greenhouse gas, and it's responsible for most of the warming.
Carbon dioxide (54.7%) is the most important greenhouse gas
emitted by humans, but several other gases contribute to climate
change, too, such as Methane (30%), nitrous oxide (4.9%),
Fluorinated gas (0.6%) and other gases (9.8%).