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Credit: Jose Picayo

Why it’s worth the effort: Brushing your teeth seems like a quick job, but before you know it, four gallons of water may have slipped down the sink.
Your one-year effect: 2,880 gallons of water saved.
The effect if everyone in the U.S. did it for one year: More than four times the Mississippi River’s annual flow of water.
 
 

Bring Your Water With You

Why it’s worth the effort: Buying a daily bottle of water may quench your thirst, but it parches the planet. Each one-liter plastic bottle takes seven liters of water to produce. Refilling your own bottle directs the water where it’s needed―into your body.
Your one-year effect: 577 gallons of water saved.
The effect if everyone in the U.S. did it for one year: Equal to the amount of water that would cover Washington, D.C., by 52 feet.