Add carbon capture to the list of potential ways railroads could reduce or eliminate greenhouse gas emissions from their fleets of diesel-electric locomotives. Remora, a Michigan-based startup company ...

A new study finds that diesel trains may expose passengers to elevated levels of certain pollutants, especially if they are sitting directly behind the locomotive -- these commuters breathe exhaust ...

The first of Union Pacific's third-generation GTEL locomotives. Wikimedia Commons/Union Pacific. The combination of advances in engine management technology, in the design of heat exchange technology ...

California is taking aiming at dirty diesel exhaust from locomotives with new regulations aimed at getting operators to shift to cleaner locomotives. For 50 years, California has ratcheted up rules to ...