A California school bus powered by propane. (Photo: SchoolBusFleet.com)
In the last decade, numerous California school districts have adopted propane-based school buses in an attempt to eliminate costs and toxic emissions. Since 2013, the Elk Grove Unified School District near Sacramento has added 16 propane buses to its fleet and expects up to 12 more in the next month.
Smoggy air envelops downtown Los Angeles. (Photo: Shutterstock).
OPINION: Despite strong efforts to ratchet down on smog and soot pollution, California still has some of the worst air quality in the nation and most urban areas in California continue to struggle with polluted air.