Ans. Global warming potential (GWP) is a measure of how much a particular greenhouse gas can contribute to global warming over a specific time period, compared to carbon dioxide. It is expressed as a factor relative to carbon dioxide, which has a GWP of 1. For example, methane has a GWP of 28-36 over a 100-year timescale, meaning it has 28-36 times more warming potential than carbon dioxide over that period.