Scientific discussion meeting organised by Professor Euan Nisbet, Professor Ute Skiba, Dr Anna Jones and Professor John Pyle FRS.

Atmospheric methane is rising rapidly. The rise is making it more difficult to reach the goals of the 2015 Paris Agreement. But the reasons for methane’s growth and concurrent isotopic shift are unclear: sources may be increasing, sinks may be declining, or both processes taking place. Is this a climate change impact? Is the warming feeding the warming?