GLOBAL GREENHOUSE GAS EMISSIONS FROM ENERGY SYSTEMS

CIVIL ENGINEERING

In this paper we are presenting energy system of global greenhouse gases, Gases present in the atmosphere helps to control earth temperature. According to the IPCC, the anthropogenic greenhouse gas (GHG) emissions contributing most evidently to Global Warming in terms of relative radiative forcing are CO2 , CH4 , halocarbons and N2O. CO2 emissions originate mainly from combustion of fossil fuels, and are quite well-known. However, total emission rates of CH4 and N2O are much more uncertain. The most straightforward accounting of GHG emissions is based on emission factor associated with combustion of the various fossil fuels. This approach can also be used for estimating the overall national emission inventories, but is not practical when trying to fully account for emissions associated with the use of specific technologies. Energy systems, transport systems, material manufacturing, production of chemicals, waste treatment and disposal, as well as agricultural products, have all been assessed using detailed process analysis developed under common and consistently defined rules.

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