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Notice given 6 October 2011

*1269  Senator Macdonald: To ask the Minister representing the Minister for Climate Change and Energy Efficiency—

(1) What percentage of the atmosphere is composed of carbon dioxide.

(2) What percentage of the total carbon dioxide is of human-related origin.

(3) What percentage of the human-related carbon dioxide is sourced from Australia.

(4) How much global warming, in degrees Celsius, will be averted should Australia reduce its carbon dioxide emissions by 5 per cent by 2020.

(5) What will be the total cost by 2020, and the cost per family of four persons,  the government policies that are intended to effect the 5 per cent reduction.