Shelter emissions come from energy used in residences and lodgings. This includes all the electricity, fuel oil, natural gas, propane, kerosene, and wood used to power the houses, apartments, college dorms, and hotel rooms you live or stay in. It also includes emissions from the refrigerants in your fridges and air conditioners. Shelter emissions don’t include the energy used to build residences—that’s included in consumables. Shelter emissions make up about 16% of the average American’s footprint.