The three most important greenhouse gases in the atmosphere are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Methane and nitrous oxide have greater global warming potential (GWP) when compared with carbon dioxide, which has a GWP of 1. Methane has a GWP of 25 for a 100-year period and nitrous oxide has a … Continue reading Measuring Greenhouse gas emissions: