GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CH4
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CO2
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N2O
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SF6
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Detailed explanation-1: -So, among all the gases since GWP is compared to CO2; CO2 has the least GWP i.e. 1.
Detailed explanation-2: -The refrigerant with the lowest GWP (Global Warming Potential) is R-717.
Detailed explanation-3: -CO2, by definition, has a GWP of 1 regardless of the time period used, because it is the gas being used as the reference. CO2 remains in the climate system for a very long time: CO2 emissions cause increases in atmospheric concentrations of CO2 that will last thousands of years.
Detailed explanation-4: -Methane is a powerful greenhouses gas with a 100-year global warming potential 28-34 times that of CO2.
Detailed explanation-5: -But CO2 is not the only greenhouse gas that is driving global climate change. There are a number of others – methane, nitrous oxide, and trace gases such as the group of ‘F-gases’ – which have contributed a significant amount of warming to date.