The New South Wales government plans to set aside almost $280 million for a voluntary buyback scheme for homes containing loose-fill asbestos. It is believed there are as many as 511 homes in NSW built by the Mr Fluffy company which used loose-fill asbestos type roofing insulation during the 1960s and 70s. Asbestos fibre is the most prominent cause of mesothelioma - the aggressive lung cancer.