The research by Aberystwyth, Bangor and Reading universities involved measuring the amount of methane burped out by farm animals in specially designed polytunnels.

• 这项研究由阿伯里斯特威斯大学、班戈大学和瑞丁大学共同开展，研究人员对牲畜在特制的塑料大棚中打嗝时所排出的甲烷量进行了测算。