| Summary/Abstract |
Greenhouse effect is a natural process that produces the relatively warm and hospitable environment near the earth’s surface where humans and other life-forms have been able to develop and prosper. It is about non-normal variations to the climate mainly due to increased anthropogenic activities such as industrialisation, urbanisation, deforestation, agriculture, change in land use pattern etc. that leads to emission of increased level of green house gases (GHGs- carbon dioxide (CO2), water vapor (H2O), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6) etc.) which makes the rate of climate change much faster and so also its effects on Earth. The risk of climate change is largely a function of total cumulative GHGs in the atmosphere.
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