New CSIRO research shows that the cost to the community of coastal flooding could more than double in the next 50 years- and not that much can be done to solve the problem. And despite allegations that some councils – and maybe even governments – might be holding on to some information, the Insurance Council of Australia (ICA) says all flood data should be freely available.

CSIRO statistics show global warming will introduce a new breed of natural disasters, with increasing sea levels and extreme weather resulting in more regular and more severe floods. By 2050, storms that statistically hit once every 100 years now will hit the coast every 40.

ICA’s commitment to make all flood data available follows allegations that Brisbane City Council has withheld information about flood levels. It also renewed its call for Commonwealth, state and local governments to spend more money on flood mitigation and prevent inappropriate development.

It’s a familiar tune, and one that ICA Regional Manager for Queensland Graham Jones has sung many times before.

“The availability of accurate data from councils or other authorities is poor compared to other states,” he said. So insurers can’t be expected to provide more extensive coverage “when lack of data often makes it difficult to assess risk”.

“Quite apart from insurers, people have a right to know whether their property is vulnerable to flood so they can be better prepared in an emergency,” he said.