Question: Why is tackling methane a fast opportunity for slowing the rate of global warming (and therefore an attractive target for COP28)? Question options: Methane's role in atmospheric warming is permanent, so even small reductions can lead to significant decreases in the rate of global warming. Methane is much shorter-lived in the atmosphere than CO2, but it causes at least a quarter of atmospheric warming, making its reduction impactful on climate change rates. Because methane contributes minimally to atmospheric warming, focusing on reducing its emissions has an immediate cooling effect. The reduction of methane emissions is less technologically challenging compared to CO2, hence it offers a quicker solution to global warming. Since methane is primarily produced by natural sources, targeting these can quickly reverse the trend of global warming. Tackling methane emissions is not a fast opportunity for slowing global warming since its impact on the atmosphere is negligible compared to CO2.