Senator Ludlam asked the Minister representing the Minister for Climate Change and Energy Efficiency, upon notice, on 12 April 2011: With reference to prescribed burns carried out by the Western Australian Department of Environment and Conservation in 2009-10, and unmanaged bush fires: (1) Does the department keep records of the square kilometres burnt by prescribed burns in Western Australia: (a) if so, can copies of these figures be provided, for every years for which data exists; and (b) if not, why not. (2) Does the department keep records of the square kilometres burnt by unmanaged bush fires in the Western Australia: (a) if so, can copies of these figures be provided, for every year for which data exists; and (b) if not, why not. (3) Does the department have a figure pertaining to the carbon dioxide equivalent (CO2e) that is released, per year since 1990, as a result of prescribed burns; (a) if so, can copies of these figures be provided; and (b) if not, why not and why are these figures not acquired or kept to enable CO2e levels to be attributed to Western Australia. (4) Does the department have a figure pertaining to the CO2e that is released, per year since 1990, as a result of unmanaged bush fires in Western Australia: (a) if so, can copies of these figures be provided; and (b) if not, why not and why are these figures not acquired or kept to enable CO2e levels to be attributed to Western Australia.