Converting Between Measurement Systems - Examples

$$\text{1000 Year Storm}$$

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A "1000-year" storm hit the state of Louisiana, dropping nearly 7 trillion gallons (26 trillion liters) of water the week of $August 8, 2016$. That is, three times the amount of water that accompanied Hurricane Katrina.

To put this number into perspective, let's look at how much water an individual uses per year. According to the Proceedings of the National Academy of Sciences the average person uses $2500$ cubic meters of water per year.