Roughly 1.5 million video shares of the Ice Bucket Challenge (mostly US based and not including out of US video shares).
The UN states the average person needs 50 litres of water per day (in Africa – they do with 20 litres – with a billion people with little or no access to water)
An average small bucket holds about 10 litres of water.
On a low estimate (ignoring group ice bucket challenges), roughly 1.5 m X 10 l = 15 m litres of water has been used (the Washington Post estimated 5 million gallons or roughly 18 m litres of water used till 13 August) across the videos.
Which translates to the water usage of 750,000 individuals in Africa for one day.
The ALS has raised about US$80m as a result of these challenges (they raised US$2m the same time last year).
I’m not sure whether the costs and benefits add up necessarily here.
Don’t want to pour cold water on good intentions though…..
Some interesting reading: