Methods to save energy
Turn on the lights and fans when there is no one in the room.
Methods to save energy Build buildings with more curtain glass-walls.
Methods to save energy Order foods more than enough in a restaurant.
Methods to save energy Use energy saving equipment, e.g. use fluorescent lamps instead of filament lamps.
Methods to save energy Keep water boiling for more than five minutes.
Methods to save energy Use public transport like MTR trains instead of driving private cars.
Methods to save energy Switch the TV off when no one is watching.
Methods to save energy Can you suggest more ways to save energy?