Frustration is building in Canterbury over election policies that "fail" to address regional issues.

Environment Canterbury's chair Peter Scott has sent an open letter urging election candidates to think beyond Auckland and Wellington.

The letter outlines four areas his council wants prioritised; including flood resilience and adaptation to climate change.

Scott told Mike Hosking that he's becoming increasingly annoyed trying to influence decision makers in Wellington, despite Canterbury being the largest region in the country.

He says if election policies continue to ignore Canterbury, the region could go bankrupt.

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