Green roofs have important environmental and economic benefits, which include reducing stormwater runoff, cooling urban air temperatures, improving air quality, and reducing energy usage in buildings. Another positive outcome that I hadn’t given much thought to, until this week, is the wildlife habitat that green roofs create. This roof (below) in Boston supports a nesting gull, standing over its brood of chicks. Who could ask for a better home, with such great views of the city and harbor?
 

Photo by Alice Webb