IHI claims battery-powered vessel will cruise 120km on an eight-hour charge
Nation aims to capture 10 per cent of global market for plug-in autos by 2015
But businesses argue more clarity is still needed
Australian software automatically calculates and buys carbon credits according to computer power usage
Threatened by rising sea levels, Pacific island unveils zero-carbon strategy in attempt to boost clout at Copenhagen talks
Only 15 new homes have so far qualified as zero-carbon, but government insists it is on track to meet 2016 target
Greenpeace study argues world's energy needs can be met without nuclear or fossil fuels
Proposed guidelines for green non-domestic buildings to help firms compare rival standards
Building giant details plans to develop three more commercially viable zero carbon homes over next three years
BusinessGreen.com reports from the Think 08 conference where the great and the good of the construction industry reveal their plans for the zero carbon buildings of the future