There is an interesting article in today's The Age, titled Climate cash goes up in smoke. The article, by Mark Davis and Lenore Taylor, explains that the average cost of abatement from a range of federal government climate change initatives over the past ten years has been $168 per tonne of carbon dioxide equivalent.
In fact, rebates for rooftop solar panels had an abatement cost of more than $300 per tonne. These high costs compare to estimated carbon abatement costs between $20 and $25 under an emissions trading scheme or carbon tax.
AGL supports the introduction of an emissions trading scheme as an efficient and least cost solution for meeting Australia's medium and long term emission reduction targets. For more information, see AGL Energy's Climate Change Policy.