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Environment
Dale Dominey-Howes, Honorary Professor of Hazards and Disaster Risk Sciences, University of Sydney

What's causing Sydney's monster flood crisis – and 3 ways to stop it from happening again

Mick Tsikas/AAP

Again, thousands of residents in Western Sydney face a life-threatening flood disaster. At the time of writing, evacuation orders spanned southwest and northwest Sydney and residents of the Hawkesbury-Nepean Valley were being warned the crisis was escalating.

It’s just over a year since the region’s long-suffering residents lived through one of the largest flood events in recent history. And of course, earlier this year floods devastated the Northern NSW town of Lismore.

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