What’s the buzz on urban beekeeping in Baltimore?

You know that Supremes song “Up the Ladder to the Roof”? Last week, at the top of the Baltimore Convention Center, those lyrics weren’t just a wistful song of love but literal directions. I traveled up a narrow inner staircase on the Pratt Street tourism complex’s highest floor, across the roof to another set of stairs, and then climbed not one but two ladders to my destination, where a guy in a big helmet carefully handled a bee-covered screen.