Electrifying railways significantly reduces pollution.

Electrifying railways significantly reduces pollution. A study found a switch from diesel to electric trains reduced black carbon exposure by 89% on San Francisco’s Caltrain. “The transition from diesel to electric trains occurred over just a few weeks, and yet we saw the same drop in black carbon concentrations in the station as California cities achieved from 30 years of clean air regulations,” said Joshua Apte, study senior author. ~ learn more