Speaking at the APIA Convention and Exhibition held in Cairns, Queensland, Mr Kellet said that the growth in natural gas vehicles in Europe, the sub-continent and the Americas has been dramatic, with an objective of a nearly seven-fold increase by 2020.

“Transportation contributes about 14 per cent of Australia’s greenhouse gas emissions and 50 per cent of this is due to cars.

“When you consider where our major pipelines run and then consider where our major transportation corridors are situated, why aren’t we thinking more about natural gas vehicles?” Mr Kellett said.