Uncertainty and variability are inevitable in studying the environmental impacts
of society's use of resources. This was the subject of a Special Session "Moving
beyond averages: uncertainty and variability analysis in industrial ecology",
which I co-chaired together with [Dr Jonathan
Cullen](https://www-diva.eng.cam.ac.uk/directory/joncullen), [Leo
Paoli](http://www.eng.cam.ac.uk/profiles/lp457) and [Dr David
Laner](http://iwr.tuwien.ac.at/en/resources/staff/scientific-staff/profile/Laner/),
at the [International Society for Industrial Ecology (ISIE)
conference](http://isie-issst2017.uic.edu/) in Chicago in June 2017. This post
summarises the session, and collects the results of the discussion with the
session participants.