Video: The Sponge Effect

25 February 2020
Duration
1:3
Audio described version
Transcript

00:00 This is a sponge.

00:02

Imagine this sponge is the forested land around our reservoirs.

00:06

After lots of rain, the land around our reservoirs is nice and damp.

00:12

So when rain falls, it runs off the wet ground into the reservoir –

00:17

helping to increase our water storages.

00:19

We need consistent rain to keep the catchment damp.

00:24

If we have less rain,

00:25

the land around the reservoirs dries out.

00:28

This means that when rain falls, it gets absorbed by the parched landscape

00:33

and little runoff makes its way into the reservoir.

00:38

This is called the sponge effect

00:40

Climate change means we are experiencing warmer and drier weather with less rainfall.

00:46

By combining water efficiency measures with regular orders from the desalination plant,

00:51

recycled water and stormwater harvesting, we create a buffer in our water storages to

00:56

ensure Melbourne’s water supply remains secure.

00:59

Visit our website for more information.