Jason Mathers is a director with the Environmental Defense Fund.
More from Jason Mathers
Understanding the Proposed Fuel Efficiency Standards for Heavy-Duty Trucks
The purpose of regulations is to enable manufacturers to bring cost-effective fuel-saving technologies to market at scale
July 27, 2015
The Trouble with Natural Gas as a Fuel Source for Trucks
We can and should make natural gas into a fuel that, on balance, is environmentally less harmful than diesel
July 7, 2015