The future of Perth’s urban wetlands is in doubt. Orderinchaos/Wikimedia Commons

Is Perth really running out of water? Well, yes and no

Perth, unlike Cape Town, faces no prospect of its tapwater running out. But other problems lurk beneath the surface, as the city’s drying climate puts increasing pressure on irrigation and wetlands.
The urban landscape is complex and ever-changing in cities such as Perth, but digital aerial photography can now monitor even the smallest changes. Wikimedia Commons

The planner’s new best friend: we can now track land‑use changes on a scale of centimetres

Constant, complex changes in cities and mine sites are hard to monitor. Drawing on digital aerial photography, it’s now possible to track land-use and vegetation changes in areas as small as 10-20cm.
Rainfall is dropping, but runoff into dams used for irrigation is dropping even faster. CSIRO

In south‑western Australia, water shortages will worsen

While the rest of Australia has had a reprieve from the Millennium Drought, and floods have recently affected many areas along the north eastern Australian coast, the extended dry period that has affected…

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