Professor Peter Stott:

They are really good questions. I will take them one by one. If I have interpreted the question on methane correctly, there are two sides, one on emissions and one on the impacts of climate change. There is no getting away from the fact that we need to reduce emissions if we are to move away from what I call a business as usual scenario. There is no easy fix. We cannot play methane off against CO2 or nitrous oxide or something else. There has to be a concerted effort to achieve 50% global reductions by 2050. That means we have to tackle all the human induced greenhouse gases and take a co-ordinated approach. We cannot only look at methane, for example. There is no easy fix unfortunately.