The report cited above suggests reducing hot water consumption by washing clothing on warm/cold cycle. In the past I have defaulted to the warm/warm cycle but I know my husband uses the warm/cold setting; so our total carbon footprint savings would be calculated at 50% (we'll assume he starts the wash 50% of the time!). If I am reading the report correctly they used a weighted average based an assumed water heater temperature of 140 degrees and state that the reductions would result in .5 millions of metric tons of carbon if executed by the nation as a whole.
In order to calculate what that savings would mean for our individual household I started researching and came across this interesting article at
treehugger.com which has persuaded me to switch to the cold/cold cycle and save 1.02 metric tons of CO2.
Goal: Set washing machine to cold/cold cycle
Cost/year: $0, actually we will save money on our gas bill because we are heating less water
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