The U.S. government offers tax credits and cash incentives to encourage consumers to purchase more fuel efficient and alternative fuel vehicles. These incentives aim to improve carbon emissions and boost the auto industry. Tax credits of up to $3,400 are available for hybrid vehicles, while electric vehicles can qualify for $2,500 to $15,000 credits depending on weight and battery capacity. The new "Cash for Clunkers" program provides $3,500-$4,500 vouchers for trading in older vehicles for new ones that are at least 4-10 mpg more efficient. However, some argue the priorities are encouraging new car sales over alternative fuel vehicles.

1. Cleaner Vehicle Incentives By Kirra Johnson