Here's how to reduce your carbon footprint by the same weight as a mountain goat 🐐 Start washing all of your laundry using cold water! If you wash on hot, your energy consumption will come out to about 4.5 kWh per load... but on cold, it will come out to only 0.3 kWh per load, as the majority of energy is used to heat water! That comes out to a carbon footprint reduction of about 90kg per year if your electricity grid comes mostly from fossil fuels. Don't forget, you'll also save close to $100 per year!