My question is to the Prime Minister. The Housing Industry Association estimates that there are 240 tonnes of carbon dioxide generated building an average house and related infrastructure and, at the rate of $26 a tonne, this would add at least $6,240 to the cost of an average home. So I ask the Prime Minister: how does she propose to compensate first home buyers in Western Sydney, for instance, for this $6,000-plus increase in the cost of housing?