A diverse mix of trees, shrubs, and flowers provide a buffet of food for insects and birds, while absorbing the greenhouse gases that warm our planet. Erin Reed Miller of the Patterson Park Audubon Center describes how native plants support local birds by providing shelter and food for the thousands of caterpillars on which hatchlings feast. And Charles Murphy of TreeBaltimore tells how efforts to grow the city’s tree depend on neighbors banding together to plant trees in yards and along streets.