Summary:

- The article discusses the Global Warming Potential (GWP) metric, which is used to measure the climate impact of different greenhouse gases, including methane.
- Methane is a potent greenhouse gas, but it has a shorter lifespan in the atmosphere compared to carbon dioxide. The GWP metric is controversial because it may not accurately reflect the true climate impact of methane.
- The article explains how the GWP metric affects the way we measure and report emissions from agriculture, particularly livestock farming, which is a significant source of methane emissions.