Power giants top greenhouse gas list

Five power station operators accounted for almost a third of Australia's greenhouse gas emissions over the past year.

The Clean Energy Regulator on Friday released its 2012/13 report on greenhouse emissions by corporations.

The top five polluters - Macquarie Generation, AGL Energy, Delta Electricity, International Power and Stanwell Corporation - generated almost 92 million tonnes of carbon emissions out of a total 309 million tonnes.