Full of holes: why Australia's mining boom will leave permanent scars

With the coal boom on the wane, mining companies want to escape the cost of rehabilitating their sites. But even if governments effectively restrain them, many of the huge voids in the landscape will never be filled in Australia is teetering on the edge of a massive hole – one left by huge mines that may soon close. As they do, the country is playing a desperate game of catch-up to make sure the mining companies pay for the cleanup. But a legacy of limited environmental requirements means