Honeybee loss can induce global threats for food production as it is estimated that one third of the entire world’s food supply comes from pollination. Pesticides are a key suspect for honeybee loss and there is something that we can all do to counteract their use. 

Colony collapse disorder (CCD) is a global phenomenon in which worker bees from  European and North American hineybee colonies abruptly disappear. Colony collapse disorder is significant economically because many agricultural crops worldwide are being pollinated honey bees (http://en.m.wikipedia.org/wiki/Colony_collapse_disorder).

The negative effects of the honeybee shortage were predicted years ago and there are several theorized causes of colony collapse disorder, from disease, to mites, to pesticides. However, in recent studies, e.g. U.C. Davis, where large sample of hives was examined, as much as 150 different chemical residues were found on the bees.

http://www.realfarmacy.com/effects-of-colony-collapse-disorder-now-manifesting-in-california/