ºÚÁϳԹÏÍø

A new U.S. Department of Transportation study hints that the Obama administration’s recently announced plans to increase heavy truck fuel efficiency and to reduce greenhouse gas emissions likely will rely on a combination of existing aerodynamic design technologies and future diesel engine and drivetrain modifications that barely have left the laboratory or still are in development.

A new Department of Transportation study hints that the Obama administration’s ambitious plans to increase heavy truck fuel efficiency and reduce greenhouse gases emissions will likely rely on a combination of existing aerodynamic design technologies and future diesel engine modifications that have barely left the laboratory or are still under development.

Two U.S. senators last week unveiled a carbon emissions reduction bill observers said would significantly increase the cost of diesel fuel.

Two senators unveiled a long-awaited carbon emissions reductions bill Wednesday that could spur increases in the cost of diesel fuel for motor carriers.

California environmental regulators can continue enforcing the state’s transportation refrigeration unit retrofit rule, a federal appeals court has ruled.