In 2015 the garbage epidemic in Beirut made headline news. While the city was drowning in trash one man came up with an idea to creatively transform glass waste into stylish and elegant glassware and save an ancient industry at the same time.

Since 1986 Nairobi's population has doubled -- struggling with traffic, pollution and waste, but even in the face of adversity there are champions of green living committed to building a greener future for city dwellers everywhere.

Environmentalist Sherif Hosny has set up a sustainable living company, bringing hydroponic urban farms to Cairo's rooftops, hoping to make the congested capital a greener place to live whilst empowering the community at the same time.

The landscape architect creating some of Singapore's most iconic green walls and rooftop gardens.