The rooftops of many buildings in Bangkok are often used to house water tanks and most are not used at all. In Singapore, all building owners are encouraged by the government to grow trees on their rooftops to add the greenness to the urbanised city.
The Novotel Bangkok on Siam Square, continuing its leadership role in eco-friendly, sustainable tourism, has introduced an innovative rooftop farming project.
Since November, the hotel has teamed up with EnerGaia Co to grow spirulina on its rooftop. With 130 square metres of previously unused roof space, this project is on pace to produce more than two tonnes of highly nutritious vegetarian protein per year utilising ambient urban carbon dioxide.
"This cooperation with EnerGaia complements our ongoing efforts to be an environmentally responsible operator, and shows that economic and sustainable goals can work hand in hand," David Baldwin, the hotel's general manager, said recently.
Novotel Bangkok on Siam Square earned the coveted ISO:9001 certification in 2000 and has followed that achievement as an enthusiastic champion of Accor's global sustainability programme, Planet 21.