Green Roof Cooling Benefits Cut in Half During Droughts

Researchers found a healthy green roof cooled air by 1.58°C at night, but drought damage cut that benefit to 0.78°C. Cities investing in rooftop greenery should take note of this caveat, as drought can severely impact the cooling effects of green roofs. This has implications for city planners, as the installation of green infrastructure is just the beginning of a new project, not the end.