Situated next to the entrance of the Cross Harbour Tunnel in Hung Hom, the campus of the Hong Kong Polytechnic University could be easily recognized by the red wall of those buildings.

坐落于九龙红磡海底隧道入口旁的香港理工大学，大学内的建筑物，均用上暗红色作为外墙的颜色。

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Over many years she saved her money from cleaning and invested wisely in small Hong Kong office buildings.

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Hong Kong's buildings account for 89 percent of all energy consumed in the city, according to the Hong Kong government.

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Edwin Lau, director of Friends of the Earth in Hong Kong, said the move to clean up Hong Kong's energy-hungry buildings was long overdue.

CNN: Can Hong Kong build bigger, higher, greener?