Methane is recognized to be an important greenhouse gas but the drivers behind fluctuations in atmospheric concentrations over the last twenty years are not well understood. Palaeoclimatic evidence implicates methane in past dramatic changes in global temperatures. Methane is also a significant energy resource. A wide range of disciplines are involved in methane research, at spatial scales spanning microbial ecology through to biogeochemistry and global atmospheric chemistry, and at temporal scales spanning the Precambrian era to the present day and beyond. In addition to pure research, the subject involves policy makers and regulators, the energy industries, agriculture and waste disposal. The Methane Network (MethaneNet) aims to facilitate communication between all these groups, broaden links and establish a prioritized research agenda to include the UK and international community.