As "Carbon Nation" discussed, buildings account for only about 10% of U.S. energy use (e.g., fuel oil, natural gas, and nuclear) only about a quarter of that used for transportation. Therefore, the amount of energy that could be saved through energy efficiency of buildings is a small proportion of the total energy (16 terawatts, i.e., 16 trillion watts) now used in the world. Group of answer choices True False