
Reference · Obrist pack
Where the manure goes
Two membrane roofs in low sun. This is the pack’s picture of biogas: manure captured and held, not vented. On the cow energy balance, biogas and stall air are 64 of the 142 GJ that leave the animal. Methane credits are the second line of Year-50 revenue, €26.9 billion, and the workbook does not treat that line the same way on every sheet. The photograph does not close that gap.











