Monday, March 26, 2007

Melbourne's Water

For the first time this morning I had a good look at the past ten years of Melbourne's water supply here.
What I saw was disturbing. Over the past 10 years there have been two years where the water levels have dropped 20%, two years where they have dropped 10%, only a few years where the levels held steady, and just one year (2003) when they rose by more than a few percent. There has never been a year in the past ten when we have had a water level rise of 10%. On average we have been losing around 6% to 7% of our water every year for a decade. Another 2-3 years could see the end of Melbourne's usuable water, unless there is a long-term change to our rainfall trends.

I think I might go dig a well ...

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