Singapore, Nov. 14 -- Foreign Minister Vivian Balakrishnan highlighted that the building industry is crucial in tackling the two mega trends of climate change and urbanisation (Cities can be ally in climate action: Experts, Nov 6).

Singapore has done well in mitigating the environmental impact of buildings - about 40 per cent meet the Building and Construction Authority's green standards.

Additionally, one in two Housing Board flats is expected to sport solar panels on rooftops by 2020 (Singapore to ramp up use of solar energy for power needs, Oct 30). While laudable, these initiatives could be further expanded to include households, and even industries, in the climate change fight.

Household energy consumption makes up about 19 per c...