Agence France-Presse: The United States could cut greenhouse gas emissions by the equivalent of France’s total annual emissions by getting Americans to make simple lifestyle changes, like regularly maintaining their cars or insulating their attics, a study showed Monday. If US households took 17 easy-to-implement actions — like switching to a fuel-efficient vehicle, drying laundry on a clothesline instead of in a dryer, or turning down the thermostat — carbon emissions could be cut by 123 metric tons a …