Spring may soon be in the air, but the bees that pollinate our fruit and flowers may not be. A national survey of the bee population found that there are half as many bees as there were 50 years ago. The lack of pollinators is particularly acute in urban areas.
But in the San Francisco Bay area, there are efforts under way to seed the city with a network of beehives, and to reintroduce wild, native bees into the urban environment.
LIANE HANSEN, host: