Seventh Generation is challenging Americans to change the way they do their laundry. Approximately 35 billion loads of laundry are washed each year in the U.S. with 90% of the energy used going toward heating the water, according to Project Laundry List, a nonprofit organization committed to educating people about cold water washing and line drying. Close to six in 10 Americans admit that they would consider washing their clothes in cold water to save energy (56%) or money (55%), according t...