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The United States wastes energy equal to the fuel demand of Barbados on a practice with no proven health benefit: washing hands in hot water rather than cool, a study says.
It doesn’t kill germs better than cooler water, but turning tap temperatures high, the U.S. burns carbon equal to the emissions of Barbados.
Is It Best to Wash Clothes on Cold? Here's What Experts Say
September, 2016
Washing hands with cold water kills germs just as effectively as hot water - NZ Herald
PPT - The Study of Energy Indicator in Hot-Humid Climate Office
Hot water is no better than cold for killing germs by hand washing, says study – INTERNEWX
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What are some good ways to save energy in your home? - Quora
Turning down the heat on washing hands and laundry
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