And even if drivers
switch to more
fuel - efficient cars and trucks, the nation's
fuel needs are expected to increase by a fifth over the next 20 years, thanks to
dramatic increases in car and airplane use.
The most
dramatic decline is registered in the A1B marker; this is related to its aggressive assumptions on the introduction of low - sulfur technologies and
fuel switching in the ASIA region (see Box 5 - 3 for more details).