Yayoi Kaneko - researcher at Tokyo University of Agriculture and Technology, conducted a study on the Sett microclimate. In this study, the internal conditions of setts within five European badger (Meles meles) social groups are monitored during the cub-rearing season. Sett temperature showed substantial and significant variation over this period, while relative humidity remained stable throughout.

Abstract
Maintaining homeothermy is essential for mammals, but has considerable energetic costs. In this study, Sett microclimate within five European badger (Meles meles) social groups during the cub-rearing season were monitored, that is, February to July, in 2004. Sett temperature showed substantial and significant variation over this period, while relative humidity remained stable throughout.

The Sett microclimate was least stable during the period for which cubs remain entirely below ground between February and April; however here the instrumented main