My institution takes the long game: Physics as a department has a (£1m, ~2000l / overnight run) liquefier that is used nearly continuously and pays for itself i

My institution takes the long game: Physics as a department has a (£1m, ~2000l / overnight run) liquefier that is used nearly continuously and pays for itself in the long run. This is the tragedy of the commons for climate change all over again: individually, we profit by polluting as not doing so involves a cost; societally we win overall by changing our behaviour collectively. A helium liquefier and recovery system is exactly the sort of thing a competent departmental head should support.