Science Questions

Sun, 5th Mar 2006

Part of the show Recycling, Water Use and Problem Plastic

Question

Colin in Peterborough asked:

We're on an island surrounded by water. How come we've got a water shortage?

Answer

I guess what you're talking about is why we don't use seawater to drink. We could and it's perfectly possible from a technical point of view but it's going to cost us a lot of money and a lot of environmental damage to do it. It uses a huge amount of energy. People in dry places like Las Vegas pipe in water over very long distances which costs a lot on pumping costs.

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