Washing machines have different classes or quality from an A Class to G Class or beyond to more energy consumption. We should purchase an energy-saving washing machine. An A Class washing machine will make you save lots of energy because it will only use approximately 0.95 kW/h in a single washing cycle while B Class machine would need 1.15 kW/h to do the same job. We burn down 1.3 kW/h of energy by using a C Class washing machine or unbelievable 5.5 kW/h if we still operate a G Class or an old unmarked washing machine. It is common sense that we run the washing machine in full load to save energy, and hanging our clothes dry than using the dryer.

So what by the way is carbon footprint?

A carbon footprint is the measure of the impact human activities have on the environment in terms of the amount of greenhouse gases produced, in short, it is the amount of carbon dioxide (CO2) emitted as a direct or indirect result of an activity. Almost everything we do results in CO2 emissions — from breathing to traveling, warming our homes to buying food, etc.

At the moment, CO2 is being released about three times faster than it can be reabsorbed. Every second, human activity emits another 770 tons — enough to fill 140 Olympic-sized swimming pools.
Source: How To Reduce Your Carbon Footprint

And one way to reduce it is to use the energy-saving washing machine and washing clothes wisely.