Considering the use of the so-called ‘elemental forces’ of water, fire, earth and air in public art; with examples from Melbourne’s public and street art.
Air
Although it is the space between, air is the most under used element in public art. Aside from making flags and banners flutter it is used in a couple of sculptures. The 15-metre-high wind-powered sculpture by Duncan Stemler, Blowhole in the Docklands. Elsewhere in the world there are musical sculptures that are played automatically, like Aeolian harps and the common wind chime. On a more subtle level there is scent of gardens, of incense and the burnt eucalyptus leaves of smoking ceremonies carried in the air.

Water
Water was the first one to be used for public art with public drinking fountains and other water features from artificial lakes and waterfalls. There are many fountains and drinking fountains in Melbourne there are also mist sprays on the rocks in Footscray, Wominjeka Tarnuk Yooroom by Maree Clarke and Vicky Couzins. Street artist have also used water, one summer blocks of coloured ice were left to melt in Hosier Lane, the coloured liquid running between the bluestone cobbles. The street artist, CDH used hypochromatic ink for stencil works where the piece that only became visible when wet. Finally there is the unofficial colouring of fountains and moats often in conjunction with protests.

Fire
From the eternal flame at the Shrine of Remembrance, candle light vigils, to Indigenous smoke ceremonies fire is used in a variety of public art. Camp fire with Aboriginal story teller at Federation Square. It is not all sacred; there are profane gas flares at the casino and temporary public art events like, fireworks displays. Fortunately there is little use of fire in street art, aside from a rare CDH pyrotechnic painting.

Earth
Earth art is the principle form of public art. From its landscaped gardens, the city is an artificial constructed landscape, complete with kitsch floral clocks. The metal and stone used in sculpture is also from the earth but that might be labouring the point. Street art also use earth and plants in guerrilla gardening.
