I use the multicols environment (multicol package). I have two columns.
If I simply use \footnote{the footnote text, which is quite long}
the footnote behaves as if there was just one big column (as in a "normal document").
It seems that there is no regular way to obtain a footnote which only spans one of my two columns.
But I guess there is a workaround like there is e.g. [1] for placing floating objects inside the multicol environment.
I would be grateful for any hint.
[1] http://www-h.eng.cam.ac.uk/help/tpl/textprocessing/multicol_hint.html