ABSTRACT
Nitrous oxide is an important greenhouse gas contributing to global warming and to the depletion of stratospheric ozone. Increasing greenhouse gases (GHG) concentrations on the atmosphere may to lead to global warming and climate change. The trace gases are known as GHGs because they contribute to the greenhouse effect. When radiant energy from the sun comes to the Earth’s atmosphere, most of energy is reflected back to space. While clouds and aerosols absorb some portion, a smaller portion is also absorbed by greenhouse gases. The IPCC states that the chief causes for the worldwide greenhouse effect are Carbon Dioxide and water vapour. The methane sinks contribute to regulating the concentrations of this gas in the atmosphere. Waste management and treatment activities are sources of GHG emissions. Methane production is attributed to the anaerobic transformation of complex macromolecules present in sewage.
