Global Warming Potential (GWP) is a metric used to compare the ability of different greenhouse gases to trap heat in the atmosphere over a specific time period, usually 100 years. GWP expresses the impact of a gas relative to carbon dioxide (CO2), which has a GWP of 1. For example, methane (CH4) has a GWP of about 25 over 100 years, meaning it is 25 times more effective at trapping heat than CO2. This measurement helps in understanding and comparing the climate effects of different gases.
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