View full lesson: http://ed.ted.com/lessons/every-city-needs-healthy-honey-bees-noah-wilson-rich Bees have been rapidly and mysteriously disappearing from rural areas, with grave implications for agriculture. But bees seem to flourish in urban environments -- and cities need their help, too. Noah Wilson-Rich suggests that urban beekeeping might play a role in revitalizing both a city and a species. (Filmed at TEDxBoston.) Talk by Noah Wilson-Rich.