Nationwide, it would translate to a 0.6 per cent increase in smog. However, the Natural Resources Defence Council in the United States, a non-profit advocate of ethanol made from cellulose, suggests that the smog in Los Angeles could be 10 per cent worse.
Par contre, le Natural Resources Defence Council des États-Unis, une organisation sans but lucratif qui fait la promotion de l'éthanol fabriqué à base de cellulose, laisse entendre que le smog pourrait augmenter de 10 p. 100 à Los Angeles.