new imaging technique, developed by a team led by Dr Magnus Gålfalk at the Linköping
Universityin Sweden and described inNature Climate Change, allows us to see for the first time where it is being
generated. The video shows methane emissions (shown in purple and
green) escaping from a vent in barn of housing 18 cows. This is a major step forward in our management of greenhouse gas emissions from landfill, agriculture, wastewater treatment and any other potential source of the gas.