ATLANTA -- Georgia’s school systems are looking for ways to cut costs to make up for skyrocketing gas costs.

Schools are considering delaying textbook purchases, canceling field trips or changing bus routes to have enough money to pay about 60 percent more per gallon than this time last year for school bus diesel.

Atlanta Public Schools spokesman Joe Manguno said the district's bus drivers have been told not to idle for more than three minutes at a time. The system expects to spend an additional $500,000 this year for gas.

State lawmakers only increased student transportation funding by $3 million, which must be shared among the state's more than 180 school districts. That's less than 2 percent more funding than last year.