Turning off the water while brushing your teeth is an easy way to conserve our resources and save on your water and electricity bills. Researchers at MIT estimate that every time a person brushes his/her teeth without running the water, he/she is saving 3 gallons of water and 1600-1700 kiloJoules (for hot water) or 2.25 J using cold water. This calculation does not include the energy used for water treatment and distribution. Check out their calculations here.
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