Question

which is a more immediate threat carbon dioxide or methane?

Explanation:

Methane has a much higher short-term global warming potential (GWP) than carbon dioxide—over 80 times more potent at trapping heat in the atmosphere over a 20-year period. It also cycles out of the atmosphere faster than CO₂, making its immediate warming impact far more intense, which makes it a more urgent short-term threat.

Answer:

Methane is a more immediate threat than carbon dioxide.