The scale of this summer's bushfires that ripped through large swathes of Australia is almost beyond comprehension.  The damage to human health and the natural environment is still being assessed.

The scale of this summer's bushfires that ripped through large swathes of Australia is almost beyond comprehension. The damage to human health and the natural environment is still being assessed.

The scale of this summer's bushfires that ripped through large swathes of Australia is almost beyond comprehension. &nbsp;The damage to human health and the natural environment is still being assessed.

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Counting the cost of the bushfires on human health and the environment | 7.30

Counting the cost of the bushfires on human health and the environment | 7.30