There might be people who take this serious:
http://en.wikipedia.org/wiki/Colony_Collapse_Disorder
No more pollination, means no more crops, means no harvest, no food,
problems for humans
Although the wiki ends with saying there are other ways of pollination,
without bees, they must rely on migratory beekeeping already.
Possible effects
The phenomenon is particularly important for crops such as almond
growing in California, where honey bees are the predominant pollinator
and the crop value in 2006 was $1.5 billion. In 2000, the total U.S.
crop value that was wholly dependent on honey bee pollination was
estimated to exceed $15 billion.[82]
Honey bees are not native to the Americas, therefore their necessity as
pollinators in the US is limited to strictly agricultural/ornamental
uses, as no native plants require honey bee pollination, except where
concentrated in monoculture situations—where the pollination need is so
great at bloom time that pollinators must be concentrated beyond the
capacity of native bees (with current technology).
They are responsible for pollination of approximately one third of the
United States' crop species, including such species as almonds, peaches,
soybeans, apples, pears, cherries, raspberries, blackberries,
cranberries, watermelons, cantaloupes, cucumbers and strawberries. Many
but not all of these plants can be (and often are) pollinated by other
insects in small holdings in the U.S., including other kinds of bees,
but typically not on a commercial scale. While some farmers of a few
kinds of native crops do bring in honey bees to help pollinate, none
specifically need them, and when honey bees are absent from a region,
there is a presumption that native pollinators may reclaim the niche,
typically being better adapted to serve those plants (assuming that the
plants normally occur in that specific area).
However, even though on a per-individual basis, many other species are
actually more efficient at pollinating, on the 30%% of crop types where
honey bees are used, most native pollinators cannot be mass-utilized as
easily or as effectively as honey bees—in many instances they will not
visit the plants at all. Beehives can be moved from crop to crop as
needed, and the bees will visit many plants in large numbers,
compensating via sheer numbers for what they lack in efficiency. The
commercial viability of these crops is therefore strongly tied to the
beekeeping industry.
