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Thirsty alien trees surrounding Cape Town's supply dams are causing the region to lose 50 billion litres of water every year, says Nature Conservancy South Africa.

That's equivalent to two months supply of water that the city could use.

Read: Invasive alien vegetation a major threat to Cape dam levels - scientist

Director at the Nature Conservancy South Africa Louise Stafford joined Xolani Gwala to explain,

We consolidated the previous studies and we looked at hydrological models to determine where Cape Town's dams are being fed from.

Louise Stafford, Director - The Nature Conservancy South Africa

We looked at the alien plant infestation in those sub-catchments and then we did a calculation on the water use, and we came up with the result that we are losing 50 billion litres.

Louise Stafford, Director - The Nature Conservancy South Africa

Listen below to the full interview:

This article first appeared on 702 : Alien Attack! The trees causing CPT to lose 50 billion litres of water each year

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