A tree grows in Brooklyn — a pear tree, to be specific, and it’s currently flourishing in 18 inches of soil piled on top of asphalt at the Red Hook Community Farm. A few weeks ago, the tree offered its first ever harvest of pears, and, as part of the farm’s Added Value youth empowerment program, Brooklyn teens helped clip off the ripe fruit. The pears served as both a snack for the kids and as part of the farm’s community supported agriculture shares.