what are ghgs

Greenhouse gases (GHGs) are gases in the Earth's atmosphere that trap heat, leading to the greenhouse effect. They include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and industrial gases such as hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) among others. These gases absorb the wavelengths of radiation that the Earth emits, resulting in the warming of the planet's surface. The increase in the release of GHGs due to human activities since the Industrial Revolution has led to global warming and climate change