Global Warming Potential (GWP)
Greenhouse gases vary in their chemical compositions and properties, resulting in different strengths and durations of contribution to the greenhouse effect. The Global Warming Potential (GWP) index is a widely used measure to assess the relative warming effects of these gases, with carbon dioxide (CO₂) serving as the baseline. The GWP index provides a standardised comparison by calculating the relative impact of different greenhouse gases in terms of CO₂ equivalents. Choosing an appropriate time horizon for these calculations is essential, as different gases have varying lifetimes (e.g., methane dissipates more quickly than carbon dioxide).
