The legendary Hanging Gardens of Babylon are the inspiration behind an ambitious plan to grow a rooftop forest high above Beirut’s crowded streets.The cityscape is currently overshadowed by concrete highrises, with parkland making up just 3% of Lebanon’s capital, according to a study by the American University of Beirut.The lack of greenery has contributed to poor air quality and trapped heat, among a host of other environmental issues, claims architect Wassim Melki. This led him to the the unconventional idea of greening over the city’s rooftops.
